AUNE BU2  DAC HEADPHONE AMP BLEUTOOTH  WITH R2R LADDER VOLUME CONTROL 32/768k DSD 512

The mobile phone / pad / computer can play hd music through Bluetooth connection bu2 and connect hifi earplugs. BU2 conducts targeted tuning according to the characteristics of Bluetooth, so that Bluetooth can be so beautiful. After the desktop computer or MacBook is connected to BU2 through USB, it can directly reach the 32bit/768k DSD512 master band decoding ability, so that the computer can show the live hd music.

BU2 adopts the low ripple positive and negative power supply circuit of the classic Bi pump power supply to provide continuous power for the earphone. 2x ES9318 decode in parallel and add four independent headphone amplifiers.

The BU2 uses two low jitter 45M/49M crystals and is synchronized to the two decoding chips through USB chips. The sound is natural, delicate and durable.

Bu2 innovatively adopts the dynamic volume control technology composed of electronic switch and R2R resistor. The R2R resistor array intervenes at low volume to control the fine volume with accurately matched resistance. The SNR Is excellent, the sound source is dynamic and the details are not smeared.

Carefully designed and optimized for many times, the bottom noise of bu2 is as low as 3.l6uv and thd + n Is as low as 0.000145%. It is a balanced decoding earphone with excellent indicators.

Features:-

>Master Tape Level Decoding.

>High-resolution 32-Bit/768kHz PCM and native DSD512 decoding support.

>Dual high-performance ES9318 DAC chips.

>Four independent headphone amplifiers.

>Natural presentation with Clock Synchronisation Technology.

>Multi-function volume knob.
>Precise volume adjustment with R2R ladder network.

>Reference-grade natural sound tuning.

>Dual headphone output ports, 3.5mm single-ended and 2.5mm balanced.

>USB Type-C input interface.

>Bluetooth input support.

Aune Audio has launched its latest portable DAC+Headphone amplifier, the all-new Aune BU2. It brings high-quality audio performance with dual ES9318 DAC chips and four independent amplifiers. It has dual headphone output ports, one 3.5mm single-ended and another 2.5mm balanced output. The BU2 adopts an R2R ladder array arrangement for precise volume adjustment. Bring home your HiFi music hub in the form of Aune BU2 today!!

Latest Generation ESS Sabre DAC Chip:-

Aune BU2 adopts a high-performance Dual DAC chipset featuring two latest-generation ES9318 DAC chips from ESS Sabre Technologies. It helps one enjoy quality music with high-resolution audio signal decoding. Aune BU2 supports 32-Bit/768kHz PCM and native DSD512 decoding with low noise-floor and high-dynamic-range providing an impressive experience for the users.

Independent Amplifier Architecture For Ultimate Power:-

Aune BU2 is a powerful device. It adopts a Low-ripple positive and negative pump power circuit which Aune implemented previously in the B1 headphone amp. It has an independent amplifier circuit with four independent amplifier chips for outstanding performance. Aune BU2 is capable of powering demanding HPs with ease!!

Low-Jitter Crystal Oscillators For Digital Audio Clock Synchronisation:-

Aune Audio is a tech giant behind many successful desktop-grade clock systems. They have implemented two low-jitter 45M/49M crystal oscillators which are synchronized with the DAC chip by the USB chip, ensuring a properly synced audio chain in your pocket. Experience true high-resolution sound with the Aune BU2 in your chain.

Accurate Volume Adjustment using R2R Volume Technology:-

Aune BU2 has dynamic volume control technology consisting of electronic switches and an R2R ladder network. At lower volume levels, the R2R controls the subtle volume with a precisely matched resistance array. This helps in accurate volume adjustment for different impedance IEMs/Headphones.

Technical Specifications:-

>Output level: 1.8Vrms(3.5mm), 3.6Vrms(2.5mm).

>THD+N: 0.000145%.

>SNR: -120dB.

>Frequency response range: 20Hz-20kHz.

>Output Power(2.5mm Bal): Up to 265mW @ 32Ω.

>Output Power(3.5mm SE): 100mW @ 32Ω.