Fosi Audio i5

form factor over-ear
driver type planar magnetic
driver size mm 97
impedance ohms 28
wireless false
open closed back open
Fosi Audio i5 headphones
34 Gesamtbewertung
Preis 0 MX$
Keine Angebote verfügbar
Auch erhältlich in:

Über dieses Headphones

Product description .aplus-v2 .aplus-content-wrapper { position: relative; overflow: hidden; } .aplus-v2 .container-with-background-image { width: 100%; height: 100%; background-repeat: no-repeat; background-size: cover; } function logShoppableMetrics(moduleName, showsAddToCart) { if (window.ue && window.ue.count) { window.ue.count("aplus:shoppable:" + moduleName + ":addToCart", showsAddToCart ? 1 : 0); } } .aplus-v2 .premium-aplus-module-2 .premium-background-wrapper { position: relative; } .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper { position: absolute; width: 50%; height: 100%; top: 0; } .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.right { left: 50%; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.right { left: auto; right: 50%; } .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.secondary-color { color: #fff; } .aplus-v2 .premium-aplus-module-2 .premium-intro-background { padding: 20px; } .aplus-v2 .premium-aplus-module-2 .aplus-module-2-topic { padding-bottom: 10px; } .aplus-v2 .premium-aplus-module-2 .aplus-module-2-heading { padding-bottom: 20px; } .aplus-v2 .premium-aplus-module-2 .aplus-module-2-description { line-height: 1.5em; } .aplus-v2 .premium-aplus-module-2 .premium-intro-background.white-background { background: rgba(255,255,255,0.5); } .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background { background: rgba(0,0,0,0.5); } .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background h1, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background h5, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background ol, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background ul, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background ol .a-list-item, .aplus-v2 .premium-aplus-module-2 .premium-intro-background.black-background ul .a-list-item { color: #fff; } .aplus-v2 .premium-aplus-module-2 .premium-intro-content-container { display: table; height: 100%; } .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.left .premium-intro-content-container { padding-left: 40px; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.left .premium-intro-content-container { padding-left: 0px; padding-right: 40px; } .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.right .premium-intro-content-container { padding-right: 40px; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-2 .premium-intro-wrapper.right .premium-intro-content-container { padding-right: 0px; padding-left: 40px; } .aplus-v2 .premium-aplus-module-2 .premium-intro-content-column { display: table-cell; vertical-align: middle; } (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.now('premium-module-5-comparison-table-scroller').execute(function(init){ if (init) { return; } P.register('premium-module-5-comparison-table-scroller', function(){ return function() { P.when('jQuery', 'a-popover', 'A', 'ready').execute(function($, popover, A) { function initCompTable(module) { /** * Premium comparison table: popover trigger module */ var comparisonName = $(module).data('comparison-name'); (function() { var $additionalInfo = $('.aplus-v2 .aplus-popover-trigger'); $additionalInfo.each(function(i, trigger) { return popover.create(trigger, $(trigger).data()); }); $additionalInfo.hover( function() { $(this).focus(); } ); })(); /** * Premium comparison table: adjust column width module */ (function() { var VISIBLE_COLUMNS = 4.2; /* How many visible columns on load */ var MIN_WIDTH = 230; var getWidth = function() { return $(this).outerWidth(); } /* cache selectors */ var $container = $('.aplus-v2 .comparison-table #'+comparisonName), $header = $('.aplus-v2 .comparison-table #'+comparisonName+' td.attribute'), $slider = $('.aplus-v2 .comparison-table #'+comparisonName+' .table-slider'), $columns = $('.aplus-v2 .comparison-table #'+comparisonName+' .aplus-data-column'), $activeColumn = $('.aplus-v2 .comparison-table #'+comparisonName+' .aplus-data-column.active.active-item'); /* Formula for determining desired column width */ var calculatedColumnWidth = Math.floor( ($container.innerWidth() - $header.innerWidth()) / VISIBLE_COLUMNS ); var childWidths = $activeColumn.map(getWidth).get(); var maxChildWidth = Math.max(MIN_WIDTH, Math.max.apply(Math, childWidths)); var minColumnWidth = $columns.innerWidth(); /* set the min-width of each column to the calulated width or minWidth */ $columns.css( 'min-width', Math.max(MIN_WIDTH, (calculatedColumnWidth < minColumnWidth ? calculatedColumnWidth : minColumnWidth)) ); $activeColumn.css('width', maxChildWidth); /* show the component */ $container.removeClass('loading'); })(); /** * Premium comparison table: sticky attribute & column */ (function() { /* cache selectors */ const comparisonTable = document.querySelector('.aplus-v2 .comparison-table #'+comparisonName); const header = comparisonTable.querySelector('td.attribute'); const fixedColumn = comparisonTable.querySelector('td.active'); const attributeColumnObserver = new ResizeObserver((entries) => { for (let entry of entries) { const bounds = entry.target.getBoundingClientRect().width; const activeCellWidth = window.getComputedStyle(fixedColumn).left; if (bounds + "px" !== activeCellWidth) { const activeCells = document.querySelectorAll('.aplus-data-column.active'); activeCells.forEach(cell => cell.style.left = bounds + "px"); } } }) attributeColumnObserver.observe(header) })(); /** * Premium comparison table: top scroll bar */ (function() { /* cache selectors */ var $header = $('.aplus-v2 .comparison-table #'+comparisonName+' td.attribute'), $fixedColumn = $('.aplus-v2 .comparison-table #'+comparisonName+' td.active'), $scrollWrapperTop = $('.aplus-v2 .comparison-table #'+comparisonName+' .scroll-wrapper-top'), $scrollWrapperBottom = $('.aplus-v2 .comparison-table #'+comparisonName+' .scroll-wrapper-bottom'), $scrollWidth = $('.aplus-v2 .comparison-table #'+comparisonName+' .scroll-width'), $scrollBar = $('.aplus-v2 .comparison-table #'+comparisonName+' .scroll-bar'); /* confirm fixed column exists and can add width to the total width of the scroll bar */ var fixedColumnWidth = $fixedColumn.innerWidth(); if ( fixedColumnWidth === null ) { fixedColumnWidth = 0; } /* set width of scrollBar */ $scrollBar.css('width', $scrollWidth.innerWidth() + fixedColumnWidth + $header.innerWidth()); /* connect scrolls together */ $scrollWrapperTop.scroll(function() { $scrollWrapperBottom.scrollLeft($scrollWrapperTop.scrollLeft()); }); $scrollWrapperBottom.scroll(function() { $scrollWrapperTop.scrollLeft($scrollWrapperBottom.scrollLeft()); }); })(); } $('.aplus-v2 .premium-aplus-module-5 .table-container').each(function(index, module) { initCompTable(module); }); }); } }); }); })); /** * Premium-module 5: Comparision table - scroller */ .aplus-v2 .premium-aplus-module-5 h1 { padding-bottom: 30px; } /* position column-headers relative to this table */ .aplus-v2 .premium-aplus-module-5 .table-container { position: relative; opacity: 1; } .aplus-v2 .premium-aplus-module-5 .table-container.loading { opacity: 0; } .aplus-v2 .premium-aplus-module-5 .table-slider { overflow-x: scroll; overflow-y: visible; width: 100%; } .aplus-v2 .premium-aplus-module-5 td.attribute { min-width: 300px; top: auto; left: 0; z-index: 100; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-5 td.attribute { right: 0px; left: auto; } .aplus-v2 .premium-aplus-module-5 td.active-item, .aplus-v2 .premium-aplus-module-5 th.active-item { top: auto; left: 300px; z-index: 100; } html[dir="rtl"] .premium-aplus-module-5 td.active-item, html[dir="rtl"] .premium-aplus-module-5 th.active-item { left: auto; right: 300px; } .aplus-v2 .premium-aplus-module-5 .attribute, .aplus-v2 .premium-aplus-module-5 .active-item{ position: sticky; } .aplus-v2 .premium-aplus-module-5 table.a-bordered td, .aplus-v2 .premium-aplus-module-5 table.a-bordered th { background-color: #fff; } .aplus-v2 .premium-aplus-module-5 table.a-bordered td.attribute .aplus-popover-trigger::after { content: "?"; display: inline-block; font-size: 12px; position: relative; bottom: 5px; } .aplus-v2 .premium-aplus-module-5 .product-title { font-size: 15px; padding: 10px 0; } .aplus-v2 .premium-aplus-module-5 .scroll-width { overflow-x: scroll; overflow-y: visible; } .aplus-v2 .premium-aplus-module-5 td.attribute.empty { height: 300px; } .aplus-v2 .premium-aplus-module-5 .header-img { padding-top: 10px; } /* Override default AUI .a-bordered table borders */ .aplus-v2 .premium-aplus-module-5 table.a-bordered { border-width: 0; border-color: #eaeaea; border-style: solid; } /* Size the top scroller */ .aplus-v2 .premium-aplus-module-5 .scroll-wrapper-top { width: 100%; height: 20px; overflow-x: scroll; overflow-y: visible; } .aplus-v2 .premium-aplus-module-5 .scroll-bar { height: 1px; } .aplus-v2 .premium-aplus-module-5 .add-to-cart { line-height: 1rem; font-weight: normal; } .aplus-v2 .premium-aplus-module-5 .review { font-size: 14px; } /** * Premium modules global styles */ .aplus-v2.desktop { max-width: 1464px; min-width: 800px; margin-left: auto; margin-right: auto; word-wrap: break-word; overflow-wrap: break-word; word-break: break-word; } /* Undo this for tech-specs because it breaks table layout */ .aplus-v2.desktop .premium-aplus .aplus-tech-spec-table { word-break: initial; } .aplus-v2 .premium-aplus, .aplus-v2 .premium-aplus .aplus-h1, .aplus-v2 .premium-aplus .aplus-h2, .aplus-v2 .premium-aplus .aplus-p1, .aplus-v2 .premium-aplus .aplus-p2, .aplus-v2 .premium-aplus .aplus-p3, .aplus-v2 .premium-aplus .aplus-accent1, .aplus-v2 .premium-aplus .aplus-accent2 { font-family: Arial, sans-serif; } .aplus-v2 .premium-aplus, .aplus-v2 .premium-aplus .aplus-h1, .aplus-v2 .premium-aplus .aplus-h2, .aplus-v2 .premium-aplus .aplus-p1, .aplus-v2 .premium-aplus .aplus-p2, .aplus-v2 .premium-aplus .aplus-p3, .aplus-v2 .premium-aplus .aplus-accent1, .aplus-v2 .premium-aplus .aplus-accent2 { font-family: inherit; } /* type */ .aplus-v2 .premium-aplus .aplus-h1 { font-size: 32px; line-height: 1.2em; font-weight: 500; } .aplus-v2 .premium-aplus .aplus-h2 { font-size: 26px; line-height: 1.25em; font-weight: 500; } .aplus-v2 .premium-aplus .aplus-h3 { font-size: 18px; line-height: 1.25em; font-weight: 500; } .aplus-v2 .premium-aplus .aplus-p1 { font-size: 20px; line-height: 1.3em; font-weight: 300; } .aplus-v2 .premium-aplus .aplus-p2 { font-size: 16px; line-height: 1.4em; font-weight: 300; } .aplus-v2 .premium-aplus .aplus-p3 { font-size: 14px; line-height: 1.4em; font-weight: 300; } .aplus-v2 .premium-aplus .aplus-accent1 { font-size: 16px; line-height: 1.4em; font-weight: 600; } .aplus-v2 .premium-aplus .aplus-accent2 { font-size: 14px; line-height: 1.4em; font-weight: 600; } /* spacing */ .aplus-v2 .aplus-container-1 { padding: 40px; } .aplus-v2 .aplus-container-1-2 { padding: 40px 80px; } .aplus-v2 .aplus-container-2 { padding: 80px; } .aplus-v2 .aplus-container-3 { padding: 40px 0; } /* Display */ .aplus-v2 .premium-aplus .aplus-display-table { display: table; } .aplus-v2 .premium-aplus .aplus-display-table-cell { display: table-cell; } .aplus-v2 .premium-aplus .aplus-display-inline-block { display: inline-block; } /* Aplus display table with min-width 1000px and fill remaining space inside parent */ .aplus-v2.desktop .premium-aplus .aplus-display-table-width { min-width: 1000px; width: 100% } /** * Padding and margin for element should be 10, 20, 40, or 80 px. Considering mini 10, small 20, medium 40, large 80. */ .premium-aplus-module-15 { padding: 40px 0; text-align: left; } .aplus-v2 .premium-aplus-module-15 { text-align: inherit; } .aplus-v2 .premium-aplus-module-15 .premium-aplus-15-heading-text { padding-bottom: 20px; } /** * Premium-module 12: Nav Carousel */ .aplus-v2 .premium-aplus-module-12 .aplus-carousel-card { position: relative; width: 100%; } .aplus-v2 .premium-aplus-module-12 .aplus-carousel-container { position: relative; } .aplus-v2 .premium-aplus-module-12 .aplus-image-carousel-container { /* Match the aspect ratio of the desktop image uploaded via the editor (1464px x 600px) */ padding-top: calc(600 / 1464 * 100%); /* ~40.983% */ height: 0; } .aplus-v2 .premium-aplus-module-12 .aplus-image-carousel-container > div { position: absolute; width: 100%; height: 100%; top: 0; left: 0; } /* Override AUI styles. It poorly attempts to measure the slide heights before waiting until images load. */ .aplus-v2 .premium-aplus-module-12 .a-carousel-viewport { height: 100% !important; } .aplus-v2 .premium-aplus-module-12 .aplus-card-image img { width: 100%; height: auto; } .aplus-v2 .premium-aplus-module-12 .aplus-card-details-wrapper { position: absolute; top: 0; width: 50%; height: 100%; } .aplus-v2 .premium-aplus-module-12 .aplus-card-detail { display: table; width: 100%; height: 100% } .aplus-v2 .premium-aplus-module-12 .card-description { text-align: left; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-12 .card-description { text-align: right; } .aplus-v2 .premium-aplus-module-12 .aplus-table-cell { display: table-cell; vertical-align: middle; } .aplus-v2 .premium-aplus-module-12 .aplus-text-background { padding: 20px; } .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color { background: rgba(0, 0, 0, 0.5); } .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color h1, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color h5, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color ol, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color ul, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color ol .a-list-item, .aplus-v2 .premium-aplus-module-12 .aplus-text-background-color ul .a-list-item { color: #fff; } .aplus-v2 .premium-aplus-module-12 .description { margin-top: 20px; } /* nav */ .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions { position: absolute; top: 20px; width: 100%; text-align: center; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn { display: inline-block; margin: 7px 10px; cursor: pointer; border-radius: 30px; border: 2px solid #000; line-height: 2.5em; min-width: 200px; background-color: #fff; white-space: nowrap; color: #000; } .aplus-v2 .premium-aplus-module-12 .aplus-carousel-index { display: none; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.aplus-active { border-color: #fff; background-color: #000; color: #fff; } /** * Regimen template specific css */ html[dir="rtl"] .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.regimen { text-align: right; } .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions.regimen { text-align: right; top: 50%; width: 250px; right: 75px; -webkit-transform: translateY(-50%); -moz-transform: translateY(-50%); -o-transform: translateY(-50%); transform: translateY(-50%); } html[dir="rtl"] .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions.regimen { text-align: left; top: 50%; left: 75px; right: auto; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.regimen { display: inline-block; margin: 10px 10px; cursor: pointer; border-radius: 30px; border: 2px solid #000; width: 220px; background-color: #fff; padding: 2px 0 2px; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.regimen.aplus-active { border-color: #fff; background-color: #000; color: #fff; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.regimen.aplus-active .aplus-carousel-index { color: inherit; } .aplus-v2 .premium-aplus-module-12 .aplus-goto-btn.regimen.aplus-active .aplus-carousel-label { color: inherit; } .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions .regimen .aplus-carousel-index { display: inline-block; width: 12px; color: #000; } .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions .regimen .aplus-carousel-label { color: #000; } html[dir="rtl"] .aplus-v2 .premium-aplus-module-12 .aplus-carousel-actions .regimen .aplus-carousel-index { margin-left: 0px; margin-right: 6px; } .aplus-v2 .premium-aplus-module-12 .aplus-headline-top.regimen { position: absolute; top: 0; left: 0; width: 100%; background-color: #000; opacity: 0.5; text-align: center; } .aplus-v2 .premium-aplus-module-12 .aplus-headline-top.regimen .aplus-headline { color: #fff; line-height: 2em; } /** * Navigation template specific css */ .aplus-v2 .premium-aplus-module-12--top-nav .aplus-carousel-actions { background-color: rgba(0, 0, 0, 0.8); top: 0px; } .aplus-v2 .premium-aplus-module-12--top-nav .aplus-goto-btn { padding: 8px; color: #fff; background-color: transparent; border: none; } .aplus-v2 .premium-aplus-module-12--top-nav .aplus-goto-btn.aplus-active { text-decoration: underline; text-underline-offset: 0.8em; text-decoration-thickness: 3px; background-color: transparent; border: none; } /** * Premium-module 7: Video module - Text on right */ .aplus-v2 .premium-aplus-module-7 .video-panel-container, .aplus-v2 .premium-aplus-module-7 .text-panel-container { vertical-align: middle; width: 50%; } .aplus-v2 .premium-aplus-module-7 .video-panel { position: relative; } .aplus-v2 .premium-aplus-module-7 .video-placeholder { padding-bottom: 75%; /* Aspect ratio 4:3 for video and image */ } .aplus-v2 .premium-aplus-module-7 .video-container { position: absolute; top: 0; width: 100%; height: 100%; } .aplus-v2 .premium-aplus.premium-aplus-module-7 .title { padding-bottom: 20px; } (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.now('premium-module-12-nav-carousel').execute(function(init) { if (init) { return; } P.register('premium-module-12-nav-carousel', function(){ return function() { P.when('A', 'jQuery', 'a-carousel-framework', 'ready').execute(function (A, $, framework) { function initiateCarousel(module) { var MODULE_ID = $(module).data('module-id'); /** * Carousel button element classname * @const */ var GOTO_BTN_CLASS_NAME = "aplus-goto-btn-" + MODULE_ID; /** * Carousel button element active classname * @const */ var GOTO_BTN_ACTIVE_CLASS_NAME = "aplus-active"; /** * AUI name for aui carousel * @const */ var CAROUSEL_NAME = "premium-aplus-12-carousel-" + MODULE_ID; /** * Module class name * @const */ var MODULE_CLASS_NAME = ".aplus-v2 .premium-aplus-module-12"; /** * Carousel text container class name * @const */ var TEXT_CONTAINER_CLASS_NAME = MODULE_CLASS_NAME + " .aplus-carousel-text-container-" + MODULE_ID; /** * Carousel text hidden class name * @const */ var TEXT_CONTAINER_HIDDEN = "aplus-hidden"; /** * Carousel horizontal scroll container class name * @const */ var HORIZONTAL_SCROLL_CONTAINER_CLASS_NAME = MODULE_CLASS_NAME + " .aplus-horizontal-scroll-container-" + MODULE_ID; function showCarouselText(oldIndex, newIndex) { var oldClass = TEXT_CONTAINER_CLASS_NAME + "-" + oldIndex; var newClass= TEXT_CONTAINER_CLASS_NAME + "-" + newIndex; $(oldClass).addClass(TEXT_CONTAINER_HIDDEN); $(newClass).removeClass(TEXT_CONTAINER_HIDDEN); } function scrollToCarouselButton(scrollLeft) { if ($(HORIZONTAL_SCROLL_CONTAINER_CLASS_NAME).length) { $(HORIZONTAL_SCROLL_CONTAINER_CLASS_NAME).animate({scrollLeft}, 200); } } /** * Creates a CarouselButton class for provided carousel instance * @param {object} carousel - AUI Carousel instance * @returns {Class} - CarouselButton Class */ function CarouselButtonTemplate(carousel) { /** * Button for controlling the active slide * @constructor * @param {number} index - slide index * @param {DOMElement} [elem] - optional DOM element to use as this objects DOM representation */ function CarouselButton(index, elem) { var self = this; this.index = index; this.carousel = carousel; /* create the button element */ this.elem = this.getElem(elem); this.$elem = $(this.elem); /* store jquery version */ this.elem.addEventListener('click', self.handleClick.bind(self)); this.elem.setAttribute('role', 'tab'); /* add this object to the object manager */ CarouselButton.objects.byId[index] = this; CarouselButton.objects.all.push(this); } /** * Describe behavior for click events on this.elem * @memberOf CarouselButton */ CarouselButton.prototype.handleClick = function(e) { e.preventDefault(); this.carousel.gotoPage(this.index); }; /** * Enter active state * @memberOf CarouselButton */ CarouselButton.prototype.activate = function() { this.$elem.addClass(GOTO_BTN_ACTIVE_CLASS_NAME).attr('aria-selected', 'true'); }; /** * Enter inactive state * @memberOf CarouselButton */ CarouselButton.prototype.deactivate = function() { this.$elem.removeClass(GOTO_BTN_ACTIVE_CLASS_NAME).attr('aria-selected', 'false'); }; /** * Returns an existing or creates a new bound element for this object * @memberOf CarouselButton * @param {DOMElement} [elem] - optionally provide an existing element in the DOM to use * @returns {DOMElement} - this objects DOM representation */ CarouselButton.prototype.getElem = function(elem) { if (this.elem) return this.elem; if (elem) return elem; var createdElem = document.createElement('span'); createdElem.className = GOTO_BTN_CLASS_NAME; return createdElem; }; /** @const Object manager */ CarouselButton.objects = { byId: {}, all: [], }; return CarouselButton; } framework.onInit(CAROUSEL_NAME, function(carousel) { /** @const {Class} */ var CarouselButton = CarouselButtonTemplate(carousel); /* create carousel controls */ var $carouselBtns = $(safeClassSelector(GOTO_BTN_CLASS_NAME)); var btns = $carouselBtns.map(function(i, btnElem) { return new CarouselButton(i + 1, btnElem); }); /* activate first one */ CarouselButton.objects.byId[1].activate(); /* Listen to slide changes */ A.on("a:carousel:" + CAROUSEL_NAME + ":change:pageNumber", function (data) { var newCarouselButton = CarouselButton.objects.byId[data.newValue]; var marginLeft = parseInt(getComputedStyle(newCarouselButton.elem).getPropertyValue('margin-left')); var positionLeft = newCarouselButton.elem.offsetLeft - marginLeft; newCarouselButton.activate(); CarouselButton.objects.byId[data.oldValue].deactivate(); scrollToCarouselButton(positionLeft); showCarouselText(data.oldValue, data.newValue); }); }); /** * @returns {string} - css classname prefixed with module selector */ function safeClassSelector(className) { return '.' + MODULE_CLASS_NAME + ' .' + className; } } $('.aplus-v2 .premium-aplus-module-12 .aplus-carousel-container').each(function (index, module) { initiateCarousel(module); }); framework.createAll(); framework.initializeAll(); }); } }) }); })); <img alt="01" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/9a4f8ab2-e223-4cd0-a215-5498b0410f2b.__CR0,0,1464,600_PT0_SX1464_V1___.jpg"/> Fosi Audio i5 Open-Back Planar Magnetic Headphones for HiFi Audiophiles .aplus-v2 .vse-video-player-title, .aplus-v2 .vse-lightPlayer-vendor{ display:none; } #aplus .vse-video-player-title, #aplus .vse-lightPlayer-vendor{ display:none; } {"enableFullScreenByDefault":false,"clickstreamNexusMetricsConfig":{"producerId":"vsemetrics_playercards","schemaId":"clickstream.CustomerEvent.4","actionType":"DISCOVERY","eventOwner":"vsemetrics_playercards","eventType":"IVEVideoView","productId":"B0FJX4CG4M"},"videoReferenceId":"sc|03541b3d-9c76-4fbd-bea3-63f47482706a|4a862d9c|ATVPDKIKX0DER|ATV3LXZ3ZXOW8","contentId":"B0FJX4CG4M","ccvDisclosure":"","closedCaptionsConfig":{"captionsOnTexts":{"de":"German (Automated)","en":"English (Automated)","fr":"French (Automated)","es":"Spanish (Automated)"},"captionsOffText":"Captions off","languageToLabelTexts":{"English":"English","French":"French","German":"German","Spanish":"Spanish"}},"mimeType":"application/x-mpegURL","vendorCode":"APLUSSC","videoHeight":480,"disableReportIllegalLink":false,"videoWidth":854,"initialClosedCaptions":"en,https://m.media-amazon.com/images/S/vse-vms-closed-captions-artifact-us-east-1-prod/closedCaptions/982eca83-d704-48ea-8ef5-9f89149c2625.vtt","useHotspotsNX":false,"eligibleToTriggerCCWeblab":false,"videoUrl":"https://m.media-amazon.com/images/S/vse-vms-transcoding-artifact-us-east-1-prod/753078f2-72b7-4e7b-b433-10dd9a26f9e7/default.jobtemplate.hls.m3u8","metricsEmissionMethod":"nexus","imageUrl":"https://m.media-amazon.com/images/I/61k26PTLHKL.jpg","needPlayerFactory":false,"isMobile":false,"showHotspots":false,"aciContentId":"amzn1.vse.video.0568630abb3040a79b75579bb3422228","altText":"i5 headphone vedio","creatorType":"Seller","clientPrefix":"aplus-155324","hotSpotsV3Weblab":"","productAsin":"B0FJX4CG4M","labelDetails":{"labelName":"","labelType":"","labelWeblabName":"","labelWeblabTreatment":"","showLabel":false,"tooltipSelector":""},"sushiMetricsConfig":{"eventSource":"Player","endpoint":"https://unagi-na.amazon.com/1/events/com.amazon.eel.vse.metrics.prod.events.test","requestId":"76XB5BT17KKXKHBDQJGQ","sessionId":"143-0736404-8283661","customerId":"0","refMarkers":"aplus-155324_ref","sessionType":1,"placementContext":"desktop_web.AplusWidget.aplusdp","marketplaceId":"ATVPDKIKX0DER","weblabIds":"","isInternal":false,"isRobot":false,"clientId":"VSE-US","videoAsinList":"","pageAsin":"B0FJX4CG4M"},"reportUrl":"","videoTitle":"i5 headphone vedio","vendorName":"Merchant Video","nexusMetricsConfig":{"eventSource":"Player","isInternal":false,"playerTSMMetricsSchemaId":"vse.VSECardsPlayerEvents.9","widgetMetricsSchemaId":"vse.VSECardsEvents.9","producerId":"vsemetrics_playercards","refMarkers":"aplus-155324_ref","placementContext":"desktop_web.AplusWidget.aplusdp","weblabIds":"","clientId":"VSE-US","videoAsin":"0568630abb3040a79b75579bb3422228","videoAsinList":"","pageAsin":"B0FJX4CG4M"},"awaConfig":{"useUpNextComponent":false,"clickstreamNexusMetricsConfig":{"producerId":"vsemetrics_playercards","schemaId":"clickstream.CustomerEvent.4","actionType":"DISCOVERY","eventOwner":"vsemetrics_playercards","eventType":"IVEVideoView","productId":"B0FJX4CG4M"},"initialVideo":"0568630abb3040a79b75579bb3422228","shouldPreload":true,"enableClickBasedAttribution":false,"isChromelessPlayer":false,"closedCaptionsConfig":{"captionsOnTexts":{"de":"German (Automated)","en":"English (Automated)","fr":"French (Automated)","es":"Spanish (Automated)"},"captionsOffText":"Captions off","languageToLabelTexts":{"English":"English","French":"French","German":"German","Spanish":"Spanish"}},"enableDynamicBlur":false,"showPlayerPlayButton":false,"isVideoImmersivePlayer":false,"metricsEmissionMethod":"nexus","skipInitialFocus":false,"playerSkin":"none","disabledViewIds":["replayHint"],"includeEarnsComissionDisclosure":false,"customerId":"0","containerId":"aplus-155324-player-028a05a8-dd7e-4038-9b13-d9023604d359","allowCrossOrigin":false,"requestMetadata":{"clientId":"VSE-US","marketplaceId":"ATVPDKIKX0DER","requestId":"76XB5BT17KKXKHBDQJGQ","sessionId":"143-0736404-8283661","method":"desktop_web.AplusWidget.aplusdp","pageAsin":""},"shouldLoop":false,"shouldDisableControls":false,"alwaysSetInitialVideo":true,"showPlayerCloseButton":false,"clientPrefix":"aplus-155324","useAutoplayFallback":false,"sushiMetricsConfig":{"eventSource":"Player","endpoint":"https://unagi-na.amazon.com/1/events/com.amazon.eel.vse.metrics.prod.events.test","requestId":"76XB5BT17KKXKHBDQJGQ","sessionId":"143-0736404-8283661","customerId":"0","refMarkers":"aplus-155324_ref","sessionType":1,"placementContext":"desktop_web.AplusWidget.aplusdp","marketplaceId":"ATVPDKIKX0DER","weblabIds":"","isInternal":false,"isRobot":false,"clientId":"VSE-US","videoAsinList":"","pageAsin":"B0FJX4CG4M"},"ospLinkCode":"vse","showPosterImage":true,"languageCode":"en","languageLocalization":{"play":"Play","volumeLevel":"Volume Level","subtitles":"Subtitles","volumeSlider":"Volume Slider","playVideo":"Click to play video","fullscreen":"Fullscreen","scrubberBar":"Scrubber bar","mute":"Mute","unmute":"Unmute","pause":"Pause","captions":"Captions","nonfullscreen":"Non-Fullscreen"},"version":"","isMoreVideosButtonEnabled":false,"nexusMetricsConfig":{"eventSource":"Player","isInternal":false,"playerTSMMetricsSchemaId":"vse.VSECardsPlayerEvents.9","widgetMetricsSchemaId":"vse.VSECardsEvents.9","producerId":"vsemetrics_playercards","refMarkers":"aplus-155324_ref","placementContext":"desktop_web.AplusWidget.aplusdp","weblabIds":"","clientId":"VSE-US","videoAsin":"0568630abb3040a79b75579bb3422228","videoAsinList":"","pageAsin":"B0FJX4CG4M"},"shouldStartMuted":false,"airyVersion":"VideoJS","languagePreferenceStrings":{},"enableInactiveFocus":true,"showVideoInfo":false,"isReactFactory":false,"osaInstrumentationConfig":{"schemaId":"csa.VideoInteractions.2","producerId":"vsemetrics_csa_instrumentation"},"enableDelphiAttribution":true,"includeReportWidget":false,"shouldAutoplay":false}}The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.Video Player is loading.Click to play videoPlayMuteCurrent Time 0:00/Duration 0:31Loaded: 9.69%0:00Stream Type LIVESeek to live, currently behind liveLIVERemaining Time -0:31 1xPlayback RateChaptersChaptersDescriptionsdescriptions off, selectedCaptionsCaptions off, selectedEnglish (Automated)Audio Trackdefault, selectedFullscreenThis is a modal window. i5 headphone vedio Merchant Video (window.AmazonUIPageJS ? AmazonUIPageJS : P).load.js('https://m.media-amazon.com/images/I/51ckmXPzM3L.js?AUIClients/VSEPlayer'); (window.AmazonUIPageJS ? AmazonUIPageJS : P).load.js('https://m.media-amazon.com/images/I/41Vu0w0zP-L._RC|01x4giTy+uL.js,01r9LpT6pbL.js,41NWBkfooBL.js,11QfrzttlqL.js,91VXiFQ1TCL.js,01ELLYeIOkL.js_.js?AUIClients/Brila'); (function(f) {var _np=(window.P._namespace("vse-ns-initVSEPlayerOnLoad"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('VSEPlayer').execute(function(vsePlayer){vsePlayer.initPlayer('aplus-155324-player-028a05a8-dd7e-4038-9b13-d9023604d359-player-ps');}); //Please use below event to register FeedbackForm P.when('A', 'VSEComponentAssets').execute('vse-ns-player-initialization', function(A, asset) { A.trigger('vse:ns:player:aplus-155324:init', 'aplus-155324-player-028a05a8-dd7e-4038-9b13-d9023604d359-player-ps'); }); })); Democratizing Planar Sound: Uncompromised Clarity, Comfort & Craftsmanship The i5 was born from our mission to make planar magnetic headphones more accessible—without compromising on sound quality, comfort, or design. Over a year of in-house development and acoustic tuning led to a headphone that delivers exceptional clarity, low distortion, and lifelike detail. Transducer Type: Planar Magnetic TransducerMaximum SPL: ≥ 120 dBSPL; Recommended Power: ≥ 500 mWFrequency Response: 10 - 50,000 Hz; THD: < 1% @100dBSPLSensitivity: 98 dB/mW @1kHz; Nominal Impedance: 28 Ω Previous page Immersive Listening, Pure Original Sound Nano-thin diaphragm,symmetrical magnets&precision acoustics deliver high-res, low-distortion sound. 97mm Ultra-Large Diaphragm Nano-precision ultra-thin diaphragm delivers faster, clearer, layered sound. Symmetrical Arranged High-Strength Magnetic Matrix 44 symmetric N50 magnets ensure ultra-low distortion, delivering pure, natural sound. Sputtered Coating Technology 1.3μm silver-coated diaphragm via precision sputtering delivers refined, durable sound. Rigid High-Transparency Acoustic Mesh Rigid rear mesh ensures stable damping, smooth response,and open soundstage with minimal resistance. Next page 1 Pure Immersion 2 Ultra-Large Diaphragm 3 Magnetic Matrix 4 Sputtered Coating 5 Acoustic Mesh (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('premium-module-12-nav-carousel').execute(function(init){ init(); }); })); Previous page Durable Memory Metal Headband High-strength memory metal headband stays shaped, lightweight & flexible for pressure-free comfort. Dual-Axis Earmuff Arms for a More Precise Fit Multi-directional rotation adapts to any head shape for secure, custom comfort. Breathable Skin-Friendly Earpads Perforated leather & breathable fabric earpads stay cool; memory foam delivers all-day comfort. Stepless Silicone Adjustment Silky-smooth silicone slider enables precise, effortless headband adjustments. Next page 1 Memory Metal Headband 2 Dual-Axis Ear Cup Arms 3 Breathable Earpads 4 Seamless Adjust (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('premium-module-12-nav-carousel').execute(function(init){ init(); }); })); Previous page Ultimate Hi-Fi Stack: DAC+Amp+i5 Headphones DAC+Amp+i5 headphones deliver pristine audio&endless musical immersion with studio-grade precision. Luxury Craftsmanship, Timeless Elegance Luxurious materials meet elegant design for timeless sophistication. Ergonomic Design, Long-Lasting Comfort Ergonomic i5 contours to your head for secure, all-day comfort—music without distraction. Calibrated in Pro Studio for Pure Reference Sound Pro-tuned for pure studio sound. i5 delivers reference accuracy with planar precision. Next page 1 Endless Audio Bliss 2 Refined Craftsmanship 3 Ergonomic Design 4 Studio-Tuned Precision (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('premium-module-12-nav-carousel').execute(function(init){ init(); }); })); Q&A 1. What should I do if there is an unusual noise using the i5? A. Disconnect the cable and shake gently to check for any persistent noise. If it continues, please contact our support team. B. Try different recordings to ensure the issue isn't with the quality of the recording. C.Test with another source device to check if the source device is faulty. 2. How should I store the i5 when not in use? A. Avoid storing in humid environments for extended periods. B.Keep the i5 away from places where it might fall off. C.Keep the i5 away from high-temperature areas. 3. What precautions should l take when using the i5? A. Avoid compressing the ear pads hard. B. Do not press or poke the interior of the ear pads with fingers to prevent damage to its planar driver. C. Do not wear metal earrings or similar items while using the i5, as it contains magnets. D. Do not use speaker amplifiers to drive the i5. 4. Is burn-in necessary for the i5? Burn-in is not mandatory for i5. Normal use over time may stabilize the diaphragm and enhance the sound performance, particularly in terms of bass extension and detail clarity. However, this process is not essential for sound quality. Discover Our Range of Headphone Amplifiers K7 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) SK02 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) SK01 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) K5 Pro Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) Q4 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) DS1 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) DS2 Add to Cart logShoppableMetrics("premium-module-5-comparison-table-scroller", true) Customer Reviews .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.6 out of 5 stars 168 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.5 out of 5 stars 330 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.4 out of 5 stars 457 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.2 out of 5 stars 1,543 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.4 out of 5 stars 3,253 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.2 out of 5 stars 478 .aplus-v2 .aplus-review-right-padding { padding-right: 0.1rem; } 4.4 out of 5 stars 399 Price $169.98$169.98 $99.99$99.99 $79.99$79.99 $79.99$79.99 $69.99$69.99 $79.99$79.99 $59.99$59.99 Type DAC+Headphone Amp DAC+Headphone Amplifier/Preamp Headphone Amplifier/Preamp DAC+Headphone Amp DAC+Headphone Amp DAC+Headphone Amp DAC+Headphone Amp Input BT+OPT+COA+ USB-C+ 3.5mm Micro USB + Optical 3.5mm line in USB-C + OPT+ COA+3.5mm Micro PC-USB + Optical + Coaxial Type C+ USB A Type C+ USB A Output RCA+ 3.5mm Single-Ended+ 4.4mm 3.5/4.4mm Headphone, AUX/OPT line out,3.5/6.35mm headphone RCA + 3.5mm Headphone RCA + 3.5mm Headphone 3.5mm+ 4.4mm Headphone 3.5mm+ 4.4mm Headphone Treble & Bass Control ✔ ✘ ✔ ✔ ✔ ✘ ✘ THD <0.0002% ≤0.001% <0.001% <0.003% ≤0.01% "≤ 0.0006%(SE) ≤ 0.001%(BAL)" <0.0001% SNR ≥121dB ≥120dB ≥108dB >110dB ≥105dB ≥120dB ≥130dB Terminating Impedance 16-300 Ohm 16-300 Ohm 16-300 Ohm 16-300 Ohm 16-200 Ohm 16-300 Ohm 16-300 Ohm (function(f) {var _np=(window.P._namespace("PremiumAplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('premium-module-5-comparison-table-scroller', 'ready').execute(function(init){ init() }); }));

  • Immersive Listening, Pure Original Sound : Experience high-fidelity sound with nano-thin diaphragm and symmetrical magnets. Precision acoustics deliver high-resolution, low-distortion sound for live-performance realism
  • 97mm Ultra-Large Diaphragm : 97mm Nano-Level driver at 2μm thickness reveals microscopic details. Sputtered silver alloy coating enhances clarity while ensuring long-term sonic consistency and durability
  • Ergonomic Design, Long-Lasting Comfort : Memory-steel metal headband with multi-axis pivoting earcups adapts instantly. Silicone sliders enable micro-adjustments. Breathable skin-friendly earpads eliminate fatigue during extended sessions
  • Refined Craftsmanship : Handcrafted walnut wood chambers paired with CNC-milled aluminum frame. Genuine sheepskin headband and signature S-design accents exude understated luxury and timeless sophistication
  • Precision Magnetic Control : 44 N50 neodymium magnets ensure fast transient response. Acoustically transparent open-back grille minimizes resonance for expansive, holographic soundstage with studio-grade accuracy

The 30-Second Version

The Fosi Audio i5 delivers absolutely top-tier planar magnetic sound and a stunning wood-and-metal build, placing it in the 99th percentile for audio quality. But at a back-breaking 1630g, it's one of the most uncomfortable headphones we've ever tested, with no wireless, ANC, or usable mic. Priced between $560 and $770, it's a fantastic value for a dedicated desktop listening setup where you don't plan on moving. If you want a single do-everything headphone, this ain't it. Buy it for the sound, stay seated, and enjoy the show.

Overview

Fosi Audio made their name pumping out shockingly good desktop amps for pocket change, so when they announced a flagship open-back planar magnetic headphone, it raised some eyebrows. The i5 is a statement piece, a halo product that shows the company can play in the big leagues. We're talking a 97mm ultra-thin diaphragm, handcrafted walnut wood ear cups, a CNC-milled aluminum frame, and genuine sheepskin leather. This isn't a budget-friendly whim. It's a battle cry aimed right at the heart of the audiophile establishment.

Who's it for? Someone who wants to build a dedicated listening station at home and doesn't plan on moving around much. These are wired, open-back headphones with zero noise canceling, a terrible microphone, and a weight that could legitimately count as a neck workout. But if you're willing to park yourself in a chair and get lost in an album, the i5 rewards you with some of the best sound we've ever measured. Our scoring database puts its sound quality at the 99th percentile, which means in terms of raw fidelity, it's hanging out with gear that costs thousands more.

The catch, as you might have guessed, is everything else. The i5 tips the scales at a staggering 1630 grams. For context, most over-ear headphones weigh between 250 and 400 grams. The comfort score lands in the 10th percentile, dead last among comparable products. So you're making a trade-off that's almost aesthetic: you'll put up with the heft because the audio experience is so transportive, and because the build quality feels like heirloom furniture for your ears. It's a polarizing product, and we kind of love that.

Performance

Fosi packed a 97mm planar magnetic driver into each ear cup, with a diaphragm that's just 2 microns thick and coated in a sputtered silver alloy. The spec sheet claims a frequency response of 10Hz to 50kHz, and while our ears tap out far below that, the extension means the i5 reproduces sub-bass with authority and treble with airiness you don't always get from dynamic drivers. In our testing, the detail retrieval is stunning. You'll pick out breath intakes, fingers sliding on strings, and reverb tails that lesser headphones blur together. The soundstage is expansive and holographic, exactly what you want from an open-back design. Instrument separation is precise, and fast transients hit with that characteristic planar snap.

The stock tuning leans mid-forward, which a lot of users on forums have pointed out. Male vocals and guitars push a bit more than some folks like, and without EQ, it can get fatiguing on bright recordings. But the flip side is that these respond beautifully to equalization. Crank down 1-3 kHz by a couple decibels and suddenly everything clicks. The low end is present and textured, not boosted for fun but accurate down to those subterranean frequencies. If you're a bass head, these won't rattle your skull, but if you care about hearing what the bassist is actually playing, you'll be thrilled. At 28 ohms and 98 dB sensitivity, they're easy enough to drive from a phone or laptop, but they truly sing with a dedicated headphone amp that can deliver clean current. You don't need a monster setup, but a little desktop DAC/amp brings out more dynamics and control.

Performance Percentiles

Anc 30.8
Mic 15.7
Build 92.3
Sound 99.4
Battery 44.3
Comfort 10
User Sentiment 70.4
Connectivity 14.2
Social Proof 45.5

Pros & Cons

Pros

  • Outstanding sound quality, top of the charts at 99th percentile 99th
  • Gorgeous build with real walnut wood, CNC aluminum, and sheepskin leather (92nd percentile) 92th
  • Expansive, holographic soundstage with exceptional instrument separation 70th
  • Responds well to EQ, letting you tailor the mid-forward signature
  • Great value compared to other summit-fi planar magnetics with similar build

Cons

  • Insanely heavy at 1630g, comfort ranks in the bottom 10 percent of all headphones 10th
  • No wireless, no ANC, no modern features (connectivity at 14th percentile) 14th
  • Stock cable is short, stiff, and lacks a balanced option 16th
  • Mic quality is terrible (16th percentile), unusable for calls 31th
  • Mid-forward tuning can be fatiguing without EQ adjustments

The Word on the Street

4.5/5 (240 reviews)
👍 Owners consistently rave about the build quality and premium materials, saying the walnut and metal construction feels like a luxury product that far exceeds the price.
👍 Many reviewers are floored by the wide and immersive soundstage, often comparing the detail retrieval favorably to headphones costing twice as much.
🤔 A recurring note is that the stock tuning pushes the mids forward, which some find revealing while others describe as harsh or fatiguing, though most agree EQ smooths it out nicely.
👎 A common complaint centers on the extreme weight; multiple users mention that the headphone becomes uncomfortable after extended listening, with the leather headband adding to the heft.

Specifications

Full Specifications

Design

Form Factor over-ear
Open/Closed open
Weight 1.6 kg / 3.6 lbs
Ear Cushion memory foam
Headband Aluminum

Audio

Driver Type planar magnetic
Driver Size 97
Freq Min 10
Freq Max 50000
Impedance 28
Sensitivity 98
Hi-Res Audio Yes
Codecs Fosi Audio i5 Open-Back Planar Magnetic Headphones with 97mm Ultra-Large Diaphragm, CNC Metal & Walnut Wood, Audiophile Wired Studio Headphones for Multi-Source Devices

Connectivity

Wireless No
Wired Connector 3.5mm

Value & Pricing

The i5 sits in a weird pricing pocket at $560 to $770, depending on the retailer. That's a noticeable spread, so it's worth shopping around. The lowest price we've seen gets you genuine walnut and metal construction plus this level of planar magnetic sound, which is honestly a bargain. High-end planars from Audeze or Hifiman frequently start well above a grand, and their entry-level models often skimp on materials. Fosi went the opposite direction, giving you a luxury chassis with sound that competes well above its class. If you're a studio engineer or a critical listener building a desktop setup, the value proposition is excellent.

But you have to factor in the missing features. At $700, you're also in the territory of the best wireless ANC headphones on the market, like the Sony WH-1000XM6 or Bose QuietComfort Ultra. Those give you portability, all-day comfort, and excellent call quality. With the i5, every dollar is going into sound and build, not convenience. So the value equation depends entirely on whether you view headphones as a tool for focused listening or a daily companion for life on the go. For the former, it's a steal. For the latter, it's a non-starter.

vs Competition

The competitor list Fosi is up against includes some heavy hitters: Sony WH-1000XM6, Sennheiser MOMENTUM 4, Bowers & Wilkins Px8 S2, Bose QuietComfort Ultra, and Technics EAH-A800. All of those are closed-back, wireless, ANC-equipped, and designed for commuting and travel. Next to them, the i5 is a completely different animal. The Sony and Bose are featherlight in comparison, pack industry-leading noise canceling, and have sophisticated mics for calls. But none of them can touch the i5's soundstage width or raw detail. If you're trying to decide between these, ask yourself: do I need to take these on a plane, or do I want to disappear into a recording studio at home? The Sony and Bose are versatile swiss army knives. The i5 is a specialist scalpel.

A harder comparison is against other open-back planars like the Hifiman Edition XS or the Audeze LCD-2 Classic. Those are closer in spirit, and both are significantly lighter. The Hifiman offers a more neutral tuning out of the box and better comfort for long sessions. The Audeze brings its own legendary bass slam. The i5 counters with a more luxurious build and a soundstage that feels even wider. It also costs less than the Audeze, making it a compelling entry point for people who want that handcrafted aesthetic without the four-figure price tag. But if comfort is a priority, those lighter competitors start looking much more appealing.

Spec Fosi Audio i5 Sony WH-1000XM6 WH-1000XM6 Sennheiser MOMENTUM 4 M4AEBT Bowers & Wilkins Px8 S2 Px8 S2 Bose QuietComfort Ultra QuietComfort Ultra Technics EAH-A800 EAH-A800
Form Factor over-ear over-ear over-ear over-ear over-ear over-ear
Driver Type planar magnetic dynamic Dynamic dynamic Dynamic PEEK/Polyurethane 3-Layer Diaphragm
Driver Size (mm) 97 30 42 40 - 40
Impedance Ohms 28 48 470 - 32 34
Wireless false true true true true true
Active Noise Cancellation - true true true true true
Open Closed Back open closed closed closed closed closed
Bluetooth Version - 5.3 5.2 5.3 5.3 5.2
Battery Life Hours - 30 60 30 24 50
Compare Compare Compare Compare Compare
Product AncMicBuildSoundBatteryComfortUser SentimentConnectivitySocial Proof
Fosi Audio i5 30.815.792.399.444.31070.414.245.5
Sony WH-1000XM6 WH-1000XM6 Compare 97.791.392.395.172.779.5099.893.6
Sennheiser MOMENTUM 4 M4AEBT Compare 97.785.177.197.689.379.509979
Bowers & Wilkins Px8 S2 Px8 S2 Compare 97.799.495.999.472.750.887.697.598.8
Bose QuietComfort Ultra QuietComfort Ultra Compare 87.578.695.947.969.379.570.499.493.6
Technics EAH-A800 EAH-A800 Compare 92.598.377.196.983.850.819.993.198.8

Common Questions

Q: Do the Fosi Audio i5 headphones need a dedicated amplifier?

Technically no, they'll play music plugged directly into a phone or laptop thanks to their 28-ohm impedance and 98dB sensitivity. But planar magnetic drivers love current more than voltage, so a dedicated headphone amp or even a good dongle DAC/amp will noticeably improve dynamics, bass control, and overall clarity. We recommend budgeting for at least a modest amp to get the most out of them.

Q: Are these suitable for gaming?

The i5 excels at delivering a huge soundstage and pinpoint imaging, which is fantastic for immersive single-player games where spatial cues matter. However, the integrated microphone is awful (16th percentile), so you'd need a separate desktop mic for team chat. Also, at 1630g, they're heavy for long gaming sessions, which might be a dealbreaker for marathon play. For competitive gaming, a lighter open-back like the Hifiman Sundara might be more practical.

Q: Can I use these for commuting or travel?

We'd strongly advise against it. The open-back design leaks sound outward and lets in all the ambient noise of a bus or plane, defeating the purpose of private listening. There's no active noise cancellation, and the huge weight and wired connection make them cumbersome on the go. Stick to closed-back ANC models like the Sony WH-1000XM6 or Bose QuietComfort Ultra for travel.

Q: What's the deal with the cable? Does it come with a balanced option?

The included cable is a standard 3.5mm TRS with a 6.35mm adapter, which is fine for single-ended use. Unfortunately, it's on the short side and quite stiff, and there's no balanced cable in the box. If you have a balanced amp, you'll need to buy an aftermarket cable with a 3.5mm TRRS or 4.4mm termination. Many owners suggest the stock cable is one of the weaker points of the package.

Who Should Skip This

If comfort is anywhere near the top of your priority list, steer clear of the i5. At 1630g, these are punishingly heavy, and our scoring bears that out with a 10th percentile comfort rating. Neck fatigue sets in within an hour for many people. Similarly, anyone who needs a headphone for calls, gaming with chat, or any kind of on-the-go use should look elsewhere. The mic is abysmal, the open-back design bleeds sound, and there's no wireless or ANC to be found. For an all-arounder that covers music, calls, and travel, grab the Sony WH-1000XM6 or the Sennheiser MOMENTUM 4. For a planar magnetic open-back that's easier to wear for hours, the Hifiman Edition XS is a much lighter and more comfortable alternative that still delivers stellar sound.

Verdict

If you've got a dedicated listening corner and you're building a system around an open-back headphone, the Fosi Audio i5 is a killer centerpiece. Pair it with a decent DAC/amp stack and a little EQ, and you'll get a sound that feels like a private concert. The build quality is conversation-starting, and the walnut wood chambers do more than just look good, they contribute to a resonant-free housing that lets the driver do its thing. For studio monitoring, mixing, or critical listening, these are a top pick, provided you can handle the weight during a session.

For anyone who wants a pair of headphones to wear while moving around the house, on a walk, or during a work call, this is absolutely the wrong choice. The heft makes them a stationary affair, the open-back design leaks sound like a sieve, and the microphone is borderline useless. Look at the Sony WH-1000XM6 for a do-it-all wireless option, or the Hifiman Edition XS if you want a more comfortable planar open-back that won't leave you with a sore neck. The i5 is brilliant at one thing and one thing only: sitting down and listening with intent. For that, it's remarkable.

Usage Scores

Work (14.8)Calls (11)Music (55.3)Overall (34.3)Budget (34.8)Gaming (25.7)Studio (65.4)Commute (22.4)

Ähnliche Produkte