[GRADE S] AUNE BU2 Portable Headphone Amplifier DAC 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

AUNE BU2 Portable Headphone Amplifier DAC 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512
-7%
Refurbished product - Grade S

Aune offers with its BU2 an excellent headphone amplifier and portable DAC combo, benefiting from a beautiful design quality, with notably the use of two ES9318 DACs, a Bluetooth 5.0 chip or a R2R volume controller. This set ensures a sound restitution of a great precision and richness. Moreover, it benefits from a double output, with single-ended 3.5mm jack but also balanced 2.5mm jack.

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Reference : 18922
Refurbished
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299,00 €tax incl.

-7%

279,00 €tax incl.

232,50 € tax excl.
Including 0,05 € for green tax

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Last items in stock !
Shipping date: 17-04-2024.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Refurbished product - Grade S

Reconditioned by the manufacturer, perfect condition.

Aune BU2

Portable Headphone Amplifier DAC 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

 Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

Aune offers with its BU2 an excellent headphone amplifier and portable DAC combo, benefiting from a beautiful design quality, with notably the use of two ES9318 DACs, a Bluetooth 5.0 chip or a R2R volume controller. This set ensures a sound restitution of a great precision and richness. Moreover, it benefits from a double output, with single-ended 3.5mm jack but also balanced 2.5mm jack.

Conversion & Amplification

The conversion stage of the Aune BU2 is based on a duo of ESS ES9318 digital/analog converters mounted in parallel for a precise and clear sound reproduction. The amplification stage embeds four independent headphone amplifiers. In addition, a low ripple positive/negative power supply is used to power all the circuits in an efficient way.

Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

Bluetooth HD

The Aune BU2 features next-generation Bluetooth 5.0, including support for the high-definition transmission codecs aptX and aptX HD. This makes it possible to easily stream music to the BU2 via a smartphone and computer, but also to connect the BU2 to headphones or Bluetooth headphones.

USB connection

The BU2 also has a USB-C input. This one allows to enjoy files in very high resolution, up to PCM 32bit 768kHz andDSD512 for a sound restitution of an incredible quality.

Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

Clock synchronization

The Aune BU2 uses two ultra low jitter clocks 45M and 49M, directly synchronized with the decoding chips, via the USB interface. These ensure a natural and transparent sound.

A single control button

Intuitive and easy to use, the Aune BU2 uses a rotary encoder for quick access to all parameters and controls.

Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

R2R volume control

The BU2 adopts a dynamic volume control technology, consisting of an electronic switch and R2R resistors. These resistors allow to attenuate the volume level in a precise way, while maintaining an excellent SNR and a very good dynamic.

Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512
Aune BU2 Amplificateur Casque DAC Portable 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512

Technical characteristics

Specifications
Product typePortable headphone amplifier / DAC
InputsBluetooth 5.0
1x USB-C
Outputs1x Balanced Jack 2.5mm
1x Single-ended Jack 3.5mm
Bluetooth 5.0
Supported sampling ratesUSB : PCM up to 32bit 768kHz, DSD up to DSD512
Output level1.8Vrms @ Jack 3.5mm
3.6Vrms @ Jack 2.5mm
THD+N0.000145%
SNR-120dB
Frequency response20Hz - 20kHz
Output power265mW @ balanced Jack 2.5mm, 32Ω
100mW @ single-ended Jack 3.5mm, 32Ω
Lifetime9h (USB decoding mode)
General
Dimensions65 x 126 x 18mm
ColorBlack
Package1x Aune BU2
1x USB charging cable
1x USB-C cable
 
Data sheet
InputBluetooth
InputUSB
OutputJack 2.5mm
OutputJack 3.5mm
OutputBluetooth
ColorBlack
ClassN/A
Remote ControlNo
Refurbished GradeGrade S
 
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[GRADE S] AUNE BU2 Portable Headphone Amplifier DAC 2x ES9318 Bluetooth 5.0 32bit 768kHz DSD512
Refurbished product - Grade S Aune offers with its BU2 an excellent headphone amplifier and portable DAC combo, benefiting from a beautiful...

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