Auris Blume Duo HiFi Bluetooth Adapter - Dual Stream, DAC Quality

Our review of the Auris Blume Duo finds a compact, well-built Bluetooth adapter aimed at listeners who want high-resolution wireless audio or to add Bluetooth to legacy systems. The bottom line: this 3-in-1 device works best for audiophiles and home-theater owners who value codec support and flexible I/O - the biggest reason to buy is its combination of LDAC and aptX HD decoding paired with an audiophile-grade DAC that improves playback from TVs, phones, and vintage stereo gear.

Key Features

• 3-in-1 Modes: Transmitter, Receiver and Bypass modes let the unit stream from a TV to two headphones, receive audio from a phone to a stereo, or pass audio to a soundbar without switching devices.
• High-resolution codecs: Native support for Sony LDAC, Qualcomm aptX HD, aptX Low Latency, aptX and AAC provides superior Bluetooth fidelity for supported sources and headphones.
• Audiophile DAC: A 384kHz/32bit DAC upsamples incoming audio for cleaner output to analog RCA and optical outputs on high-quality systems.
• Extended range: External gain antenna and specialized circuitry extend the wireless range to around 30 m (100+ ft) to reduce dropouts through multiple walls.
• Onboard battery: The internal battery offers extended portable use (up to 25 hours claimed) and includes a microphone for hands-free calls when used in a car.
• OLED and premium build: A 1.3 in OLED display and anodized aluminum housing make status and codec information easy to read and give the unit a durable, compact finish.

Who It's For

This unit suits listeners who have a mix of modern and legacy gear: people who need to stream TV audio to Bluetooth headphones, upgrade a vintage amplifier with Bluetooth reception, or add a high-quality transmitter to a home media setup. It is particularly useful for those who own hi-res capable headphones and want LDAC-level quality over wireless links.

Less suitable are those who need a completely plug-and-play solution without any setup patience or users who only require basic Bluetooth SBC/AAC streaming for casual phone audio; a simpler receiver could be cheaper and easier to configure for that narrow use case.

Pros & Cons

Pros

• Excellent codec support and a 384kHz/32bit DAC provide noticeably improved audio fidelity on capable headphones and systems.
• Flexible I/O with analog RCA and optical inputs and outputs covers most TVs, stereos and soundbars.
• Battery operation and a detachable magnetic plate make it convenient for car use and portable placement.

Cons

• Some customers report inconsistent signal strength in challenging environments, so range may vary by placement and obstacles.
• Initial setup and mode switching can be puzzling for users unfamiliar with Bluetooth codecs and transmitter/receiver roles.

Specifications

Product type	3-in-1 Bluetooth transmitter / receiver / bypass
Bluetooth version	Bluetooth 5.0
Codec support	LDAC, aptX HD, aptX Low Latency, aptX, AAC
DAC	Audiophile 384kHz / 32bit
Inputs / Outputs	Analog RCA and Digital Optical (Toslink)
Battery life	Up to 25 hours (built-in battery)
Display	1.3 in OLED screen

Our Verdict

The Auris Blume Duo is a versatile, well-made Bluetooth adapter that brings high-resolution wireless audio and legacy system compatibility into one compact package. It is a good value for audiophiles and home-theater owners who need codec flexibility and reliable outputs, though those who prioritize absolute plug-and-play simplicity or who have difficult signal environments should weigh placement and setup needs first.

Frequently Asked Questions

Can it stream to two headphones at once?
Yes, the device can transmit audio to two Bluetooth headphones or speakers simultaneously when used in Transmitter mode.

Does it support high-resolution codecs?
Yes, it supports LDAC and aptX HD among other codecs and includes a 384kHz/32bit DAC for improved playback.

Is it suitable for car use?
Yes; the built-in battery provides long runtime and the unit has a microphone for hands-free calls when installed in a car.