{"product_id":"cayin-yb04-quad-balanced-armature-in-ear-monitor","title":"Cayin YB04 Quad Balanced Armature In Ear Monitor","description":"\u003cp\u003eThe Cayin YB04 is a quad balanced armature in-ear monitor: two Knowles tweeters and two Sonion woofers, joined by a carefully tuned crossover in a jointless, CNC-machined aluminium shell. Cayin aimed for an engaging, powerful and natural sound that reproduces the original rather than emphasising anything, and it comes with Cayin’s own 8-wire hybrid cable and 12 pairs of ear tips.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-hero.jpg?v=1791377596\" alt=\"Cayin YB04 quad balanced armature in-ear monitor\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003ePerfect tuning takes patience\u003c\/h3\u003e\n\u003cp\u003eCayin chose the drivers first, then the most suitable aluminium nozzle, designed and built the CNC enclosure around them, and spent months listening to get the crossover right. Finally it built a dedicated YB04 cable from a unique combination of high-quality materials.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-tuning.jpg?v=1791377601\" alt=\"Tuning the Cayin YB04\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDesigned for precision\u003c\/h3\u003e\n\u003cp\u003eDual Knowles high-definition tweeters (SWFK31736) and dual Sonion woofers (33AJ007) give outstanding clarity and musicality across the whole frequency range, bringing out the subtle emotion in every note.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-precision.jpg?v=1791377607\" alt=\"Knowles dual tweeters and Sonion dual woofers in the Cayin YB04\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA machined aluminium enclosure\u003c\/h3\u003e\n\u003cp\u003eThe CNC-machined aluminium shells are solidly built in a robust matt black finish, with a jointless structure that reduces resonance and interaction between the drivers. Their shape comes from months of study for comfort, isolation and a secure fit, even in smaller ears, and the angled nozzle sits naturally in the ear. The very strong aluminium nozzle has a dust filter and unscrews for cleaning.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-enclosure.jpg?v=1791377613\" alt=\"CNC aluminium enclosure and angled nozzle of the Cayin YB04\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003e8-wire hybrid cable\u003c\/h3\u003e\n\u003cp\u003eCayin’s custom cable combines unidirectional crystallised OFC and silver-alloy conductors in an 8-wire hybrid design, specially annealed and recrystallised for excellent ductility and flexibility with minimal cable noise. It has a gold-plated 3.5mm plug that resists corrosion and keeps a good contact, a hexagonal aluminium splitter and plug cast from a custom mould to match the faceplates, and gold-plated 0.78mm 2-pin connectors with a non-recessed, extruded design for wide compatibility and strength.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-cable.jpg?v=1791377619\" alt=\"8-wire hybrid OFC and silver-alloy cable of the Cayin YB04\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-connect.jpg?v=1791377624\" alt=\"Gold-plated 3.5mm plug, splitter and 2-pin connectors of the Cayin YB04 cable\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAn all-round companion\u003c\/h3\u003e\n\u003cp\u003eWhether commuting, at the gym, gaming or travelling, the YB04 seals you into your own private listening room.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-uses.jpg?v=1791377630\" alt=\"The Cayin YB04 for commuting, sport, gaming and travel\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-shells.jpg?v=1791377635\" alt=\"Cayin YB04 shells\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDrivers\u003c\/th\u003e\n\u003ctd\u003e4 balanced armature: 2 × Knowles SWFK31736 (treble) · 2 × Sonion 33AJ007 (bass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e18Hz–40kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e30Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensitivity\u003c\/th\u003e\n\u003ctd\u003e113dB ±2dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShells\u003c\/th\u003e\n\u003ctd\u003eCNC-machined aluminium, matt black · removable aluminium nozzle with dust filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable\u003c\/th\u003e\n\u003ctd\u003e8-wire OFC and silver alloy, 1.3m · gold-plated 3.5mm plug · 0.78mm 2-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe 2-pin cable is detachable, so you can fit a 4.4mm balanced cable.\u003c\/li\u003e\n\u003cli\u003eIn the box: YB04, 1.3m cable with 3.5mm plug, 12 pairs of ear tips (bass, vocal, balanced, bi-flange and memory foam), storage case, cable clip, cleaning brush and manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-acc.jpg?v=1791377641\" alt=\"Cayin YB04 accessories\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-yb04-quad-balanced-armature-in-ear-monitor-photo-box.jpg?v=1791377644\" alt=\"Cayin YB04 presentation box\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Cayin","offers":[{"title":"Default Title","offer_id":57115744403843,"sku":"CAYINYB04","price":449.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_edd908ec-2ecb-4383-a488-2f56c156ba7d.jpg?v=1767161183","url":"https:\/\/www.advancedmp3players.co.uk\/products\/cayin-yb04-quad-balanced-armature-in-ear-monitor","provider":"amp3","version":"1.0","type":"link"}