• Japanese brand Acoustune announces its first Bluetooth transmitter — the “ATX001”
• Core chip: Qualcomm QCC5181, supporting flagship LDAC & aptX Lossless codecs
• USB Type-C plug-in design, body weighs just 4g, with pass-through charging
• Dedicated “ANIMA Studio” app enables cross-device remote control, real-time codec switching and OTA firmware updates
• 💰 Japan reference price ¥13,600 (tax incl., ~HK$720), pre-orders open May 29, official sale June 5
📑 Table of Contents
- From IEMs to Transmitters: Acoustune’s Next Step
- QCC5181: LDAC + aptX Lossless — Dual Flagship Codecs Fully Supported
- Design Details: USB-C Direct Plug + Simultaneous Charging
- Kaia’s Quick Take: A Refined Transmitter’s First Answer Sheet
- Technical Specifications
- Market Positioning and Purchase Guidance
- Frequently Asked Questions
- More Information
📝 From IEMs to Transmitters: Acoustune’s Next Step
Japanese audio brand Acoustune has officially announced its first-ever Bluetooth transmitter product — the ATX001 — via Japanese AV media PHILE WEB. Pre-orders open in Japan on May 29, 2026, with general sale starting June 5, 2026.
The ATX001 is a USB Type-C plug-in portable Bluetooth transmitter designed to take audio from smartphones, PCs, or even gaming consoles and wirelessly stream it to your headphones via high-quality Bluetooth codecs. Acoustune positions this product as an extension of the brand’s “Reference Grade” audio philosophy — no longer limited to the IEM itself, but starting the quality chain right at the signal source.
Background: Acoustune’s Japanese distribution rights, previously held by Pixel, were officially transferred to Tokyo Sound in April this year. The ATX001 is the first new product following this handover, carrying symbolic weight as the “first strike” of a new chapter for the brand.
🔧 QCC5181 Chip at the Core: LDAC + aptX Lossless — Dual Flagship Codecs Fully Supported
On the hardware front, the ATX001 uses Qualcomm’s latest Bluetooth audio chipset, the QCC5181, compliant with Bluetooth 5.4. Codec support is comprehensive: from Sony’s LDAC (up to 990kbps / 24-bit/96kHz) to Qualcomm’s own aptX Lossless (CD-grade lossless 16-bit/44.1kHz), along with aptX Adaptive, aptX HD, aptX, AAC, and SBC — seven codecs in total, all supported.
In other words, whether you’re using Sony WH-1000XM series headphones on LDAC or the latest aptX Lossless flagship earphones, the ATX001 automatically negotiates the optimal codec path. Bluetooth profiles include A2DP/AVRCP/HSP/HFP, with a theoretical range of approximately 10 metres.
It’s worth noting that the Qualcomm QCC5181 is a 2024 flagship Bluetooth audio SoC typically found inside high-end TWS earbuds. Acoustune’s decision to place it in an external transmitter is itself a signal of uncompromising quality.
💡 Design Details: USB-C Direct Plug + Simultaneous Charging — No Trade-Off Required
The ATX001 features a classic dongle-form design, measuring 42.5 × 19 × 10mm and weighing just 4g — barely noticeable when plugged into your phone. The exterior uses Acoustune’s signature two-tone metal finish: the main body is dark grey hairline-brushed aluminium, while the faceplate has a glossy black dotted texture printed with the brand’s iconic handwritten “acoustune” logo, with a small LED status indicator on the side.
Connectivity-wise, the top features a USB Type-C male plug for direct insertion. More importantly, the bottom of the dongle has a separate USB Type-C female charging port — allowing you to stream wirelessly via ATX001 while simultaneously charging your phone or PC through the bottom passthrough. This “pass-through charging” design is particularly practical for users who keep devices plugged in for extended periods (desktop PC users, mobile gamers), eliminating the need to choose between “listening” and “charging.”
The package includes a dedicated storage pouch and a USB-A (male) to USB-C (female) adapter for use with older PCs or gaming consoles that lack native USB-C ports. The manufacturer notes this adapter is ATX001-specific and should not be used with other devices.
💡 Kaia’s Quick Take: A Refined Transmitter’s First Answer Sheet
The Bluetooth transmitter market has historically been “function-first” — chips, codecs, battery life comparisons. For Acoustune, a brand built on metal-craftsmanship IEMs and Japanese artisan positioning, entering this space already sends a powerful message: a transmitter doesn’t have to be just a utility — it can be a thoughtfully designed audio accessory.
QCC5181 + LDAC/aptX Lossless dual flagship codecs already represent top-tier specs among Bluetooth transmitters currently on the market. But I believe there are two aspects worth discussing about the ATX001.
First is the cross-device control capability of the ANIMA Studio App. With typical Bluetooth transmitters plugged into a PC, you’d need to adjust codec settings on that PC. But the ATX001 lets you remotely control the PC-connected transmitter via your phone app — this “app-hardware separation” design approach is very rare among similar products, and is proof that Acoustune treats the transmitter as an “ecosystem product” rather than just an “accessory.”
Second is the “charge + transmit” parallel design trade-off. The biggest pain point of dongle-type products is that they occupy the only USB-C port — plug it in and you can’t charge. By adding a charging port on the bottom of the dongle, the ATX001 addresses this elegantly. It’s a simple idea but one that requires real engineering decisions in PCB layout and thermal management, showing that Acoustune genuinely designed from real-world usage scenarios.
At ¥13,600 (~HK$720), if you view it purely as “a Bluetooth dongle,” it’s expensive. But if you understand it as an entry point into the Acoustune ecosystem — a pocket-sized tool that instantly upgrades any USB-C device into an LDAC/aptX Lossless transmitter — the price becomes far more reasonable. The caveat, of course, is that you need to already own high-end Bluetooth headphones to appreciate the codec upgrade.
📋 Technical Specifications
| Product Name | Acoustune ATX001 |
| Type | USB-C Bluetooth Transmitter |
| Core Chip | Qualcomm QCC5181 |
| Bluetooth Version | Bluetooth 5.4 |
| Supported Codecs | LDAC / aptX Lossless / aptX Adaptive / aptX HD / aptX / AAC / SBC |
| Bluetooth Profiles | A2DP / AVRCP / HSP / HFP |
| Connection Interface | USB Type-C (with pass-through charging support) |
| Maximum Range | Approx. 10m |
| Dimensions (W×H×D) | 42.5 × 19 × 10mm |
| Weight | Approx. 4g (body only) |
| Dedicated App | ANIMA Studio (iOS / Android) |
| Included Accessories | Dedicated storage pouch, USB-A to USB-C adapter (transmitter-specific) |
| Warranty | 1 year |
| Japan Reference Price | ¥13,600 (tax incl.) / ~HK$720 |
| Pre-orders Begin | May 29, 2026 |
| Official Sale Date | June 5, 2026 |
🏁 Market Positioning: Japan First, Hong Kong TBC
The ATX001’s pricing and positioning in the Japanese domestic market are clear: it isn’t competing with generic sub-$20 Bluetooth adapters. Instead, it follows a premium route centered on brand power, metal craftsmanship, and ecosystem integration. The closest competitor at this level is Noble Audio’s Sceptre, announced in April this year (same QCC5181 chip, similar configuration). Compared to the Sceptre, the ATX001’s standout advantage is the Anima Studio App’s cross-device remote control — the Sceptre lacks an equivalent feature.
Acoustune positions the ATX001 as part of its broader product ecosystem alongside its wired IEMs and TWS products. While the ATX001 itself cannot charge your TWS earbuds directly, the underlying concept is consistent: unified management across the entire product line through the ANIMA Studio App.
Hong Kong users should note: the ATX001 launch is initially Japan-only. Local pricing and distribution details for Hong Kong have yet to be announced. Interested buyers can watch the official Acoustune website (acoustune.jp) for international shipping options.
🔹 Acoustune ATX001 vs Regular Budget Bluetooth Transmitters — What’s the Difference?
The ATX001 uses the flagship Qualcomm QCC5181 chip, supporting LDAC (up to 24-bit/96kHz, 990kbps) and aptX Lossless (CD-grade lossless 16-bit/44.1kHz) — codec specs far beyond basic SBC/AAC dongles. It also features an all-metal body, ANIMA Studio App cross-device control, and pass-through charging design — features budget products simply don’t offer. This is an audiophile-grade Bluetooth transmitter, not an ordinary phone accessory.
🔹 Where Can I Buy the ATX001 in Hong Kong? What’s the Price?
Currently the ATX001 launches in Japan first, with a Japan reference price of ¥13,600 (tax incl., ~HK$720). Hong Kong local distributor information and pricing are yet to be announced. Interested users can watch the official Acoustune website (acoustune.jp) for international shipping arrangements.
🔹 Can I Use the ATX001 While Charging My Phone?
Yes. The ATX001 has a dedicated USB Type-C charging port at the bottom, supporting pass-through charging. You can wirelessly transmit audio to your headphones while simultaneously charging your phone through the bottom port. One important note (per the official FAQ): unplugging the charging cable will briefly cut power to the ATX001 — the device needs to be re-inserted and the ANIMA Studio App restarted to restore the headphone connection.
🔹 Which Codecs Does the ATX001 Support? Can I Switch Manually?
The ATX001 supports a total of 7 Bluetooth codecs: LDAC, aptX Lossless, aptX Adaptive, aptX HD, aptX, AAC, and SBC. You can freely switch between codecs within the ANIMA Studio App. The prerequisite is that your headphones must also support the corresponding codec (e.g., for LDAC, the headphones must be LDAC-compatible). Some headphones may require you to first enable premium codecs in their own dedicated app (e.g., Sony’s Headphones Connect app requires enabling “LDAC Priority”).
🔹 Is the ANIMA Studio App Mandatory?
Yes, according to Acoustune’s official documentation, the ANIMA Studio App (iOS/Android) is mandatory — “the product cannot operate without the app installed.” The app handles headphone pairing, codec switching, OTA firmware updates, and all other operations. The official documentation also states the app requires an active internet connection (Wi-Fi or mobile data) to function.
📖 Further Reading
- 🔊 iFi Audio Launches Zen Air Series 2: Affordable Audiophile Trio, Cirrus Logic DAC Debut, aptX Lossless World First
- 📊 Wired Headphone Sales Surge 20%: When Bluetooth Goes “Out of Style,” Why Audiophiles Never Left
- 🎵 Japanese Brand AVIOT’s First Open-ear ANC True Wireless TE-Y1 Launched | ¥4,980 Entry Price, 41.5 Hours Battery Life
🔗 More Information
🛒 Official Product Page: Acoustune — BT Transmitter ATX001
📰 Original Report (PHILE WEB): Acoustune Launches Hi-Res Codec Compatible USB-C Bluetooth Transmitter “ATX001”
📋 Official Press Release: Bluetooth Transmitter ATX-001 — Reference-Grade Sound Quality via USB Type-C, Now on Sale
