{"product_id":"earacoustic-audio-spa-custom-tunning","title":"EarAcoustic Audio Spa Custom Tunning","description":"\u003ch2\u003eBeautiful styling matched to a beautiful sound the EarAcoustic Audio SPA Custom Tuning \u003c\/h2\u003e\n\u003cp\u003eDiscover the EarAcoustic Audio SPA Custom Tuning at Eden Audio – a premium single-dynamic-driver IEM designed for music lovers who want a detailed, natural and engaging listening experience.\u003c\/p\u003e\n\u003cp\u003eThe SPA Custom Tuning features an advanced 11.4mm dual-magnet, dual-cavity Tesla dynamic driver, combining a titanium dome with a double-sided deposited silicon-crystal surround. This sophisticated driver design is engineered to deliver excellent control, resolution and dynamic performance across a wide range of music.\u003c\/p\u003e\n\u003cp\u003eIts carefully developed tuning aims to balance detail, musicality and long-term listening comfort. The presentation combines a controlled, extended bass response with natural and articulate vocals, clear midrange detail and an energetic but refined treble. An independent 2026 review praised the SPA Custom Tuning for its balance, transparency, detail retrieval, dynamics, separation and spacious imaging, describing it as an outstanding single-dynamic-driver IEM in its price category.\u003c\/p\u003e\n\u003cp\u003eThe dual-cavity acoustic design helps create a spacious, well-layered presentation, while the lightweight aviation-aluminium construction provides a premium feel and secure, semi-custom-style fit. The result is an IEM that is equally suited to relaxed home listening, portable hi-fi and critical music listening.\u003c\/p\u003e\n\u003cp\u003eThe SPA Custom Tuning is supplied with a high-quality 4.4mm balanced + 3.5mm 2-in-1 Litz coaxial cable, incorporating silver-plated OFC, silver-plated single-crystal copper and gold-silver mixed-braid conductors. The 0.78mm detachable connection also allows the cable to be replaced or upgraded.\u003c\/p\u003e\n\u003cp\u003eWith 25Ω impedance, 111dB sensitivity and a claimed 5Hz–40kHz frequency response, the SPA Custom Tuning is easy to pair with a wide range of portable audio sources while offering the resolution and performance expected from a serious hi-fi in-ear monitor.\u003c\/p\u003e\n\u003cp\u003eWhether you're listening to rock, pop, jazz, classical music or acoustic recordings, the EarAcoustic Audio SPA Custom Tuning delivers a detailed, dynamic and spacious presentation designed to let you get closer to your favourite music.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e11.4mm dual-magnet, dual-cavity Tesla dynamic driver\u003cbr\u003eTitanium dome with silicon-crystal surround\u003cbr\u003eCarefully developed custom acoustic tuning\u003cbr\u003eDetailed, dynamic and balanced sound presentation\u003cbr\u003eDeep and controlled bass response\u003cbr\u003eNatural and articulate vocal reproduction\u003cbr\u003eClear, extended treble\u003cbr\u003eSpacious soundstage with excellent separation\u003cbr\u003eLightweight aviation-aluminium construction\u003cbr\u003e25Ω impedance\u003cbr\u003e111dB sensitivity\u003cbr\u003e5Hz–40kHz frequency response\u003cbr\u003eDetachable 0.78mm cable connection\u003cbr\u003e4.4mm balanced + 3.5mm connectivity\u003cbr\u003ePremium Litz coaxial cable supplied\u003cbr\u003eIdeal for audiophiles, music lovers and portable hi-fi enthusiasts\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edenaudio.uk\/collections\/ear-acoustic-audio\" target=\"_blank\" title=\"discover more earacoustic audio\" rel=\"noopener\"\u003eDiscover more earacoustic audio IEMs\u003c\/a\u003e\u003c\/p\u003e","brand":"EarAcoustic Audio","offers":[{"title":"Default Title","offer_id":54950868025683,"sku":"30234198491251","price":389.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1094\/5544\/2259\/files\/earacousticspacustomtunning.jpg?v=1789484287","url":"https:\/\/edenaudio.uk\/products\/earacoustic-audio-spa-custom-tunning","provider":"Eden Audio","version":"1.0","type":"link"}