{"title":"7th Acoustics","description":"\u003cp\u003e7th Acoustics is a small boutique hi-fi audio brand from Bandung, Indonesia that’s gained attention in the audiophile community for its handcrafted in-ear monitors (IEMs) with detailed engineering and artistic design. The company started around 2020, driven by founder and lead engineer Stephen Synanta’s passion for in-ear sound and custom acoustic tuning, originally focusing on made-to-order builds before expanding into more widely available standard models.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you have any questions or need guidance regarding 7th Acoustics products, feel free to reach out \u003cmeta charset=\"utf-8\"\u003e(\u003ca href=\"mailto:hello@bloomaudio.mom\" title=\"mailto:hello@bloomaudio.mom\" class=\"text-link\" data-mce-fragment=\"1\"\u003eemail\u003c\/a\u003e or \u003ca href=\"https:\/\/bloom-audio.myshopify.com\/conversations\/new\" data-reamaze-lightbox=\"contact\" data-reamaze-lightbox-anchored=\"true\" data-mce-fragment=\"1\"\u003emessage\u003c\/a\u003e)\u003c\/span\u003e!\u003c\/p\u003e","products":[{"product_id":"7th-acoustics-supernova","title":"7th Acoustics Supernova | Balanced Armature IEMs","description":"\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; width: 40%;\" alt=\"7th Acoustics logo black square\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-logo-thumb.jpg?v=1721074916\"\u003e\u003c\/p\u003e\n\u003ch4\u003eExperience Sonic Smoothness and Enchanting Tonality With 7th Acoustics Supernova Balanced Armature IEM\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(x6) Balanced Armature driver arrangement\u003c\/li\u003e\n\u003cli\u003e7th Acoustics is a small Indonesian brand focused primarily on their domestic market\u003c\/li\u003e\n\u003cli\u003eKnown for its tonality and coherency\u003c\/li\u003e\n\u003cli\u003ePremium, lacquered abalone faceplates with resin shell\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eNew upgraded blue cable now included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/bloomaudio.mom\/blogs\/measurements-database\/7th-acoustics-supernova-frequency-response\"\u003eCheck out our measurement of the Supernova\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-supernova-ba1-lifestyle.jpg?v=1721143271\" alt=\"Supernova on aluminum case over wood cabinet\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"bloom-take\"\u003e\n\u003ctable bgcolor=\"”#f6f6f6”\" width=\"90%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan style=\"color: #a30e0b;\"\u003e\u003cstrong\u003eBloom's Take\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor quite some time, Supernova has been the hobby’s best kept secret. Until now, folks who recognized the attention Supernova was getting across different forums and some more public reviews had to jump through a few hoops to acquire this IEM made from 7th Acoustics, a micro brand from Indonesia. Now, entering the western market through Bloom Audio, we are absolutely thrilled to have the opportunity to present this IEM to the rest of the industry.\u003c\/p\u003e\n\u003cp\u003eWhile Supernova has come from humble beginnings, one listen to its sound signature, and you will soon understand the massive hype circulating around this IEM. To get a better idea of Supernova and the core motivation behind it, we were able to sit down at CanJam Singapore with Stephen Synanta, founder of 7th Acoustics and lead engineer of Supernova.\u003c\/p\u003e\n\u003cp\u003eSupernova looks to deliver an incredibly balanced and extended sonic profile that's backed by balanced armature drivers from none other than Knowles and Sonion, a world class manufacturer in their respective field. In using these drivers, Supernova is both equally resolving as it is fun, and keeps tonality at the forefront of its sound signature.\u003c\/p\u003e\n\u003cp\u003eAlthough 7th Acoustics and Supernova have flown under the radar for quite some time, the cat is out of the bag, and Supernova is ready to deliver its incredibly lush and smooth sonic profile to every listener ready to give them a go.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/aBnAV6FUkxo?si=PptKtulzp4l5DRpK\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/bloomaudio.mom\/blogs\/measurements-database\/7th-acoustics-supernova-frequency-response\"\u003e\u003cimg alt=\"7th acoustics supernova iem measurement graph\" height=\"1098\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th_Acoustics_Supernova.webp?v=1726840421\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"7th Acoustics Supernova earphones with all included accessories over wood cabinet\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-supernova-ba2-inthebox.jpg?v=1721138367\"\u003e\u003c\/p\u003e","brand":"7th Acoustics","offers":[{"title":"Violet","offer_id":40924323250251,"sku":"7A-SUPERNOVA-P","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Natural","offer_id":40924323283019,"sku":"7A-SUPERNOVA-NA","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Light Blue","offer_id":40924323217483,"sku":"7A-SUPERNOVA-LB","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":40924323184715,"sku":"7A-SUPERNOVA-PB","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":40924323512395,"sku":"7A-SUPERNOVA-SB","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":40924323479627,"sku":"7A-SUPERNOVA-SR","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Light Blue - Open Box","offer_id":41778502893643,"sku":"7A-SUPERNOVA-LB-OB","price":749.0,"currency_code":"USD","in_stock":false},{"title":"Violet - Open Box","offer_id":41801574449227,"sku":"7A-SUPERNOVA-P-OB","price":749.0,"currency_code":"USD","in_stock":false},{"title":"Natural - Open Box","offer_id":42067324731467,"sku":"7A-SUPERNOVA-NA-OB","price":749.0,"currency_code":"USD","in_stock":false},{"title":"Blue - Open Box","offer_id":42091225841739,"sku":"7A-SUPERNOVA-SB-OB","price":765.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-supernova-thumbnail-two.jpg?v=1721144674"},{"product_id":"7th-acoustics-asteria","title":"7th Acoustics Asteria | Hybrid Universal IEMs","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-logo-thumb.jpg?v=1721074916\" alt=\"7th Acoustics logo black square\" style=\"display: block; margin-left: auto; margin-right: auto; width: 40%;\"\u003e\u003c\/p\u003e\n\u003ch4\u003eEmbark on a Sonic Journey with Asteria, the Radiant Second Release From 7th Acoustics, Following the Success of Supernova\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eLimited run of 77 units!\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFeatures a 10mm High-Magnetic Flux Dynamic Driver with BalanceFlow double venting technology\u003c\/li\u003e\n\u003cli\u003e(12x) Ultra-Low Distortion Next-Gen Knowles Balanced Armature Drivers\u003c\/li\u003e\n\u003cli\u003eProprietary Extreme Xover Performance (EXP) achieves acoustic precision\u003c\/li\u003e\n\u003cli\u003eCNC aluminum housing with gold ceramic coating and unique inlaid iridescent blue morpho faceplate\u003c\/li\u003e\n\u003cli\u003eIncludes bespoke LYRA pure silver cable exclusively tuned for Asteria\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"7th Acoustics Asteria IEMs front and side  view sitting and cable on wooden plant on grey couch with plant\" height=\"1360\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-asteria-banner.webp?v=1758729043\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"bloom-take\"\u003e\n\u003ctable bgcolor=\"”#f6f6f6”\" width=\"90%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan style=\"color: #a30e0b;\"\u003e\u003cstrong\u003eBloom's Take\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 7th Acoustics Asteria is a striking 13-driver hybrid flagship that pairs bold design with equally bold sound. Its CNC aluminum shell, gold ceramic finish, and iridescent blue faceplate make it visually unforgettable, while the pure-silver cable underscores its premium build.\u003c\/p\u003e\n\u003cp\u003eAsteria’s tuning leans V-shaped, delivering deep, authoritative bass, crisp mids, and bright, energetic treble. It balances impact and precision, with excellent imaging and a wide, holographic stage. Though it benefits from a powerful source, its dynamic, lively character shines through regardless.\u003c\/p\u003e\n\u003cp\u003eFor listeners who crave energy, clarity, and excitement over a laid-back presentation, the Asteria is a unique flagship that dares to sound and look different.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/bloomaudio.mom\/blogs\/articles\/the-most-unique-flagship-iem-yet-7th-acoustics-asteria-review\" title=\"7th Acoustics Asteria Review\"\u003eRead our full review\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003e7th Acoustics Newest Flagship IEM\u003c\/h3\u003e\n\u003cp\u003eAfter two years of tireless research and development by 7th Acoustics co-founder and chief engineer, Stephen Syn, they are proud to present their magnum opus: Asteria. This game-changing flagship IEM represents the culmination of their pursuit for sonic perfection.\u003c\/p\u003e\n\u003ch3\u003eDriver Design\u003c\/h3\u003e\n\u003cp\u003eAsteria is the embodiment of audio artistry, featuring cutting-edge innovation. At its core lies a 10mm bespoke dynamic driver with high magnetic flux and BalanceFlow double venting technology, delivering powerful yet controlled low-end response. \u003c\/p\u003e\n\u003cp\u003eComplementing this is a symphony of twelve next-generation, ultra low-distortion Knowles balanced armature drivers—each orchestrated through 7th Acoustics' proprietary Extreme Xover Performance (EXP) crossover system to ensure perfect coherency and acoustic balance across the spectrum.\u003c\/p\u003e\n\u003cp\u003eDrawing inspiration from horn-loaded speakers, Enhanced Clarity Horn Outlet (ECHO) technology elevates treble performance, offering crisp, lifelike detail and spatial brilliance in the upper registers.\u003c\/p\u003e\n\u003ch3\u003eExtreme Xover Performance\u003c\/h3\u003e\n\u003cp\u003eEXP is 7th Acoustics' in-house proprietary crossover technology, featuring a true higher-order crossover design to ensure perfect coherency and seamless transition between various drivers with minimum cancellation and phase mismatch. Each group of drivers is tuned meticulously to match their phase with the previous and next group of drivers. Utilizing the highest quality capacitors and resistors, EXP ensures a very low distortion and high driving efficiency without compromise. \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"7th Acoustics Asteria right IEM closeup attached to cable on black table with vinyl record and headphone amp\" height=\"1360\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-asteria-lifestyle.webp?v=1758729143\"\u003e\u003c\/p\u003e\n\u003ch3\u003eBalanceFlow Vent\u003c\/h3\u003e\n\u003cp\u003eBalanceFlow is 7th Acoustics' proprietary approach to regulate the pressure waves generated by the dynamic driver to maximize dynamics while keeping extremely low distortion levels. The dual ports deliver superb technical performance while avoiding common pitfalls such as driver flex and pressure build-up while worn. BalanceFlow adapts dynamically to the demands of the music track, giving a detailed texture, powerful punch, and yet maintaining a tight control over the driver. \u003c\/p\u003e\n\u003ch3\u003eEnhanced Clarity Horn Outlet\u003c\/h3\u003e\n\u003cp\u003eECHO is 7th Acoustics treble acoustic technology to control and push the supertweeter capabilities to its absolute limit. Unlike a conventional acoustic tube, ECHO mimics horn loudspeakers to enhance the efficiency of the driver, especially in the higher frequency ranges. This allows the treble region to be more crisp and well-extended without sounding unnatural or shrill.\u003c\/p\u003e\n\u003ch3\u003eElegant Faceplate\u003c\/h3\u003e\n\u003cp\u003eHoused in a medical-grade resin shell with CNC-machined 7075 aluminum and finished with a luxurious gold ceramic coating, Asteria is as stunning as it is sonically advanced. Its faceplate, inlaid with an iridescent Blue Morpho butterfly design, evokes a sense of elegance and mystique.\u003c\/p\u003e\n\u003ch3\u003eExclusively Tuned Cable\u003c\/h3\u003e\n\u003cp\u003eTo complete the experience, Asteria comes paired with a bespoke reference-grade pure silver cable from Astral Acoustics, tuned exclusively to unlock its full sonic potential.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-asteria-box.webp?v=1758729216\" width=\"2048\" height=\"1360\" alt=\"7th Acoustics Asteria IEMs coiled in lyra cable sitting on wooden plant on grey couch with stingray case and cable clip\"\u003e\u003c\/p\u003e","brand":"7th Acoustics","offers":[{"title":"Default Title","offer_id":41379737370699,"sku":"7A-ASTERIA","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7th-acoustics-asteria-thumb.jpg?v=1744122996"},{"product_id":"qoa-7th-acoustics-ryusei","title":"Queen of Audio x 7th Acoustics Ryusei | Dynamic Universal IEMs","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/ryusei-logo.webp?v=1788275995\" alt=\"ryusei logo\" style=\"display: block; margin-left: auto; margin-right: auto; width: 65%;\"\u003e\u003c\/p\u003e\n\u003ch4\u003eQueen of Audio and 7th Acoustics Collaborate to Present Ryusei, a Single DD IEM that Punches Way Above it's Price Point\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSingle Nano Gold-plated Dynamic Driver\u003c\/li\u003e\n\u003cli\u003eCarefully Tuned for Coherence and Full-Spectrum Sound\u003c\/li\u003e\n\u003cli\u003eSilver-plated Copper and Graphene Premium Litz Coaxial Cable\u003c\/li\u003e\n\u003cli\u003eAvailable in 3.5mm or 4.4mm Termination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-ryusei-banner.webp?v=1788278266\" width=\"2048\" height=\"1360\" alt=\"Ryusei iems sitting on vinyl record\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"bloom-take\"\u003e\n\u003ctable width=\"90%\" bgcolor=\"”#f6f6f6”\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan style=\"color: #a30e0b;\"\u003e\u003cstrong\u003eBloom's Take\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Queen of Audio x 7th Acoustics Ryusei brings the character of 7th Acoustics’ sought-after tuning to an impressively affordable IEM. Its standout vocals are detailed and emotional, while clean subbass, lively treble, and solid imaging keep the presentation engaging without becoming fatiguing.\u003c\/p\u003e\n\u003cp\u003eFor under $200, Ryusei delivers a remarkably complete package and sets a new benchmark for the class.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Queen of Audio x 7th Acoustics Ryusei Review\" href=\"https:\/\/bloomaudio.mom\/blogs\/articles\/meteoric-rise-queen-of-audio-x-7th-acoustics-ryusei\"\u003eRead our full review\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFull Spectrum, One Driver\u003c\/h3\u003e\n\u003cp\u003eRyusei was made to prove that an affordable single dynamic driver can deliver a full-spectrum, balanced sound. Carefully tuned across bass, midrange, and treble, it offers richness, layering, and detail found in pricier multi-driver earphones. The result is engaging, coherent, and outperforms its price class.\u003c\/p\u003e\n\u003ch3\u003eNano Gold Precision\u003c\/h3\u003e\n\u003cp\u003eRyusei features a custom Nano Gold Dynamic Driver. The gold-coated diaphragm increases rigidity and reduces resonance, enabling greater accuracy and lower distortion. With optimized acoustic tuning, it delivers controlled bass, expressive mids, smooth treble, and a warm, detailed sound that suits all genres.\u003c\/p\u003e\n\u003ch3\u003ePure Signal\u003c\/h3\u003e\n\u003cp\u003eThe premium Litz coaxial cable is made of single-crystal copper, silver-plated single-crystal copper and graphene. This design ensures clean, stable signal transmission and preserves fine musical details with excellent conductivity. Lightweight and flexible, it offers lasting comfort and durability for daily use.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-ryusei-lifestyle.webp?v=1788278347\" width=\"2048\" height=\"1360\" alt=\"Ryusei iems coiled in cable sitting on vinyl record\"\u003e\u003c\/p\u003e\n\u003ch3\u003eEar Tips\u003c\/h3\u003e\n\u003cp\u003eFinal Type-E ear tips deliver a balanced, natural sound with smooth treble, gently softening bright recordings for fatigue-free listening. White Bore ear tips enhance vocal presence, midrange clarity, bass texture, and dynamics, offering a more energetic sound with improved sparkle.\u003c\/p\u003e","brand":"7th Acoustics","offers":[{"title":"3.5mm","offer_id":43100041838667,"sku":"7A-RYUSEI-35","price":129.0,"currency_code":"USD","in_stock":true},{"title":"4.4mm","offer_id":43100041871435,"sku":"7A-RYUSEI-44","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/7tha-ryusei-thumb.webp?v=1788290560"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/collections\/7th-acoustics-logo-thumb.webp?v=1721154194","url":"https:\/\/bloomaudio.mom\/collections\/7th-acoustics.oembed","provider":"Bloom Audio","version":"1.0","type":"link"}