Topping D70s MQA Balanced DAC 2xAK4497 I2S XMOS Bluetooth 5.0 LDAC 32bit 768kHz DSD512 [b-Stock]

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Description

TOPPING D70S MQA

Balanced DAC 2x AK4497 Bluetooth 5.0 LDAC I2S XMOS 32bit 768kHz DSD512.

The Topping D70S MQA is an extremely versatile and powerful balanced digital-to-analog converter. Benefiting from a particularly careful design and intelligent architecture, it offers realistic, rich and lively sound reproduction, while providing full connectivity.

MQA Support

The D70S MQA supports MQA (Master Quality Authenticated) files. These allow you to enjoy sound reproduction as close as possible to the original recording in the studio, while being light enough to be broadcast.

Dual DAC AKM AK4497

The digital/analog conversion stage of the D70S MAQ has two AKM AK4497 DAC chips on board, i.e. one DAC chip per channel. This architecture makes it possible to obtain a better separation of the channels, while ensuring optimized general performance, with in particular an extremely low THD + N.

Bluetooth 5.0

Integrating a Qualcomm CSR8675 chip, the D70S MQA has Bluetooth 5.0 reception, allowing you to remotely broadcast your music. This chip supports the standard SBC and AAC codecs, but also the high definition aptX, aptX LL, aptX HD and LDAC codecs, ensuring a much higher quality of reproduction. In addition, the DAC integrated into the Qualcomm CSR8675 chip is not used here, the conversion being provided by the two AK4497 converters.

USB XMOS Interface

The USB input of the D70S is associated with a 16-core XMOS XU216 interface chip, supporting PCM audio streams up to 32bit 768kHz, Native DSD up to DSD512, as well as MQA decoding. A custom Thesycon driver is used, in order to allow the best playback performance via ASIO.

AK4118 digital receiver

SPDIF inputs are associated with an AK4118 digital receiver chip. The latter allows to achieve a very low jitter while supporting sampling rates up to PCM 24bit 192kHz.

CPLD & Accusilicon Clocks

The D70S MQA uses an Altera MAX II CPLD. This is responsible for processing the signal of the Accusilicon femtosecond clocks and for optimizing the signals. This combination of CPLD and Accusilicon clocks achieves extremely low jitter level, while perfectly synchronizing digital signal processing and optimization for better signal quality and stability.

A more than complete connection

The D70S MQA offers a variety of connectors to meet all needs. We thus find at the input of AES / EBU, USB-B, Bluetooth 5.0, Optics, Coaxial and I2S. USB and I2S inputs support high resolution files, up to PCM 24bit 768kHz and native DSD512. The Bluetooth input is compatible with the LDAC transmission codec, allowing the support of 24bit 96kHz files.

The Topping D70S MQA also allows the choice of active outputs. It is thus possible to use only the balanced XLR output, the unbalanced RCA output or to output on both at the same time.

High compatibility I2S LVDS input

The I2S HDMI input of the D70S MQA has several settings, making it compatible with most I2S interfaces. It is thus possible to adjust the "IIS Phase", "IIS DSDR" and "DSD FLAG" parameters.

Caractéristiques techniques

SPECIFICATIONS
Type of productBalanced DAC
Input1x I2S LVDS HDMI
1x USB-B
1x Optical Toslink
1x SPDIF Coaxial
1x AES/EBU
Bluetooth 5.0
Output1x XLR balanced
1x RCA unbalanced
Supported sampling rateUSB: PCM up to 32bit 768kHz, Native DSD up to DSD512, DoP up to DSD256, MQA up to 32bit 384kHz
I2S: PCM up to 32bit 768kHz, Native DSD up to DSD512
Coaxial / Optical / AES: PCM up to 24bit 192kHz
Supported Bluetooth codecsAAC, SBC, aptX, aptX LL, aptX HD, LDAC
MEASUREMENTS @ USB IN, 96KHZ
RCA Line OutputXLR Line Output
THD+N @ A-Weighting, 20kBw, volume = -2dB< 0.00015% @ 1kHz< 0.0001% @ 1kHz
THD @ No-Weighting, 90kBw, volume = -2dB< 0.0004% @ 20Hz-20kHz< 0.0002% @ 20Hz-20kHz
SNR @ A-Weighting124dB @1kHz127dB @ 1kHz
Dynamic range @ A-Weighting124dB @1kHz127dB @ 1kHz
Frequency response20Hz - 20kHz (±0.1dB)
20Hz - 40kHz (±0.3dB)
20Hz - 20kHz (±0.1dB)
20Hz - 40kHz (±0.3dB)
Output voltage2.5Vrms @ 0dBFS5Vrms @ 0dBFS
Noise @ A-Weighting< 1.3µVrms< 2µVrms
Output impedance100Ω200Ω
GENERAL
Alimentation100-240VAC (selectable, power cable supplied)
Dimensions25 x 19.5 x 5cm
Case MaterialAluminium
A ´B-Stock´ is a product which has been returned by a customer within their 14/30 Day Money Back Guarantee. These items are offered at a special, reduced price. Please note, that occasionally the packaging is no longer in pristine condition. B-Stock products are in full working order and are checked by specialists before releasing them as B-Stock. They come with the full 2 year warranty as any other new product. Any special comments about a B-Stock product will be noted at the beginning of the article description.

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Topping D70s MQA Balanced DAC 2xAK4497 I2S XMOS Bluetooth 5.0 LDAC 32bit 768kHz DSD512 [b-Stock]

b-Stock product, (read at the end of the description) in excellent conditions, original box/accessories, full warranty.

Write a review

 
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