{"id":135744,"date":"2021-09-01T14:34:19","date_gmt":"2021-09-01T13:34:19","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=135744"},"modified":"2021-09-01T14:34:19","modified_gmt":"2021-09-01T13:34:19","slug":"fiio-fd3-and-fd3-pro-in-ear-headphones-with-daikoku-coils-and-acoustic-prisms","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/headphones\/fiio-fd3-and-fd3-pro-in-ear-headphones-with-daikoku-coils-and-acoustic-prisms\/","title":{"rendered":"FiiO FD3 and FD3 Pro: In-ear headphones with Daikoku coils and acoustic prisms"},"content":{"rendered":"

FiiO FD3 and FD3 Pro in-ear headphones largely\u00a0inherited the<\/a>\u00a0technologies of the flagship FD5 model – first of all, the new products include a 12-mm speaker with a diaphragm made of diamond-like carbon (DLC), large for its class.\u00a0The weight-to-stiffness ratio of this material, according to FiiO, has reduced distortion.<\/p>\n

\"FiiO<\/p>\n

A powerful magnet is responsible for the movement of the membrane, for which a flux of 1.5 T is indicated.\u00a0In its field there is a Japanese Daikoku voice coil wound with an ultra-thin copper-plated aluminum wire – this made it possible to slightly reduce the mass of the moving system without losing its efficiency.<\/p>\n

Acoustic prisms are located at the focal point of the FiiO FD3 and FD3 Pro diaphragms – just like in the flagship FD5 model.\u00a0By separating the flow from the diffuser, this system is designed to improve the phase response of the headphones.\u00a0For a balanced frequency response, especially in the low-frequency range, the new items received a semi-open case with a likeness of a perforated acoustic impedance panel.<\/p>\n

<\/div>\n
<\/figcaption><\/figure>\n

In all this, the FD3 and FD3 Pro models are indistinguishable.\u00a0The only difference is that the Pro prefix means complete with an exclusive cable made of high-purity monocrystalline silver-plated copper.<\/p>\n

<\/div>\n
<\/figcaption><\/figure>\n

These are eight insulated conductors, 19 strands in each – a total of 152 strands of two types of litz wire.\u00a0The cable received adapters that allow you to connect to 2.5, 3.5 or 4.4 mm connectors – depending on the source.<\/p>\n

<\/figcaption><\/figure>\n

In the US, the FiiO FD3 headphone cost $ 100, and the FiiO FD3PRO headphone cost $ 140.<\/p>\n

[ratemypost]<\/p>\n","protected":false},"excerpt":{"rendered":"

FiiO FD3 and FD3 Pro in-ear headphones largely\u00a0inherited the\u00a0technologies of the flagship FD5 model – first of all, the new products include a 12-mm speaker with a diaphragm made of diamond-like carbon (DLC), large for its class.\u00a0The weight-to-stiffness ratio of this material, according to FiiO, has reduced distortion. A powerful magnet is responsible for the […] More<\/a><\/p>\n","protected":false},"author":10404,"featured_media":135745,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[640],"tags":[779],"class_list":{"0":"post-135744","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-headphones","8":"tag-news"},"acf":[],"aioseo_notices":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/135744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/users\/10404"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/comments?post=135744"}],"version-history":[{"count":0,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/135744\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media\/135745"}],"wp:attachment":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media?parent=135744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/categories?post=135744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/tags?post=135744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}