Aune X1s GT BT

The Aune X1s GT BT is the Bluetooth-equipped version of Aune's eighth-generation X1 desktop DAC and headphone amplifier, adding high-resolution wireless streaming to a design that is already a benchmark at its price. It combines decoding up to 32bit/768kHz PCM and native DSD512 with a fully discrete amplifier and Aune's own clock technology, then lets a phone or tablet connect directly over Bluetooth. For the desktop listener who wants a clean source, real driving power, and the convenience of wireless in a single box, the X1s GT BT delivers all three.

Type and Technology

Decoding is handled by an ESS ES9038Q2M chip governed by Aune's PLL (Phase Locked Loop) clock algorithm, which feeds low-jitter clock signals to the XMOS receiver and DAC simultaneously so the unit runs in synchronized mode without asynchronous sample-rate conversion. A 10MHz external clock input on BNC allows a dedicated reference clock such as the Aune XC1 to be connected. Wired digital inputs cover USB (32bit/768kHz, DSD512), coaxial (24bit/384kHz, DoP128), and optical (24bit/192kHz, DoP64), and the high-resolution Bluetooth input supports the LDAC, aptX HD, and AAC codecs. The amplifier is an upgraded version of Aune's classic B1 fully discrete circuit, and four Aune-developed filter and drive modes replace the stock chip filters, with an ALPS potentiometer for volume.

Sound Character

The X1s GT BT is tuned to be musical and smooth while staying resolving. The PLL clock work and fully discrete output stage give it a clean, low-noise backdrop with natural tone and confident dynamics. The balanced 4.4mm output delivers up to 1200mW into 32 ohms, enough to drive demanding full-size headphones with authority, while the single-ended 6.35mm output serves easier loads. Line output measures 2.0Vrms with 120dB SNR and DNR and THD+N of 0.00013 percent. Over Bluetooth, LDAC and aptX HD preserve far more detail than standard wireless.

Build and Finish

The X1s GT BT is built into a zero-tolerance aluminum enclosure in the series' distinctive arc shape, finished in Black with a red ring-light glowing behind the volume wheel for a bold, GT-inspired look. Communication-level SR PCB and carefully chosen audiophile components sit inside. The compact desktop footprint keeps it tidy alongside a monitor or speakers.

Best For

This is an excellent all-in-one for the listener who wants one tidy box to decode and drive a wide range of headphones and to stream wirelessly from a phone. It pairs especially well with sensitive in-ear monitors thanks to its low noise floor and clean balanced and single-ended outputs, then switches to Bluetooth whenever convenience matters most.

What's in the Box

• Aune X1s GT BT DAC and headphone amplifier
• Power supply
• USB cable
• 6.35mm to 3.5mm adapter
• User manual

Specifications

What Reviewers Say

Z Reviews takes a close look at the Aune X1s GT BT in this video review.