Aune BU2 DA-Converter Headphone-Amplifier Hi-Res LDAC Version

Mastertape Level Decoding - Balanced - Bluetooth
The BU2, the new generation DAC and headphone amplifier of the Aune B-Series, uses the single-to-dual positive and negative power supply of the classic B1 headphone amplifier, the two DAC chips and four amplifiers in one compact housing. The entire design is built for sound.

Your smartphone becomes a DAP HiFi player
Connect your smartphone to the BU2 via USB and it becomes a master tape-level music player. Stream your Apple Music/Kuke music libraries to your phone. Take the Hi-Res music with you wherever you are.

Bluetooth can also sound good
The smartphone/pad/computer can be connected to the BU2 via Bluetooth. Connect the headphones. Enjoy the music with ease. Thanks to the high Bluetooth quality and the special tuning, Bluetooth also sounds good.

Can't get enough? - Try pairing with your computer
The BU2 can also be connected to a PC/MacBook. Mastertape-level 32-bit/768k DSD512 decoding contributes to a vivid presentation on your computer.

Dual DAC Chip, Four Independent Amplifiers
Bring out the potential of your headphones
The BU2 features the low ripple positive and negative pump power circuitry of the classic B1, the dual parallel ES9318 DAC chips and the four independent amplifiers that give your headphones the sound they need.

Clock Synchronisation Technology
More naturalness
The BU2 uses two low-jitter 45M/49M oscillators that are synchronised to the two DAC chips via the USB chip, resulting in an even more natural and refined sound.

One "knob" - to control everything
The rotary control is also a knob. All settings and controls are made here. Enjoy the simplicity.

R2R volume technology
Dark background. Uncompressed dynamics at low volume.
The BU2 uses innovative dynamic volume control technology consisting of electronic switches and the R2R ladder network. At low volume, the R2R controls the subtle volume with a precisely tuned resistor. Better SNR. Uncompressed dynamics. So that the details are preserved.

Excellent specifications
Vivid reproduction
After several rounds of optimisation, the intricately designed BU2 achieves a noise figure of only 3.16µV and a THD+N value of only 0.000145%. Excellent specifications are the basis for excellent sound.

Aesthetic tuning
Tuning is based on the sound of real instruments and music, resulting in a natural and musical signature.