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TOPPING D90 Fully Balanced DAC

Color
Silver
black

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High-Quality Chips:
AK4499 is AKM's flagship model. With current output architecture and 4-channel design. The D90 MQA parallels the channels of the AK4499 in pairs for better performance.

High-Resolution Music:
With the support of AK4499 and XMOS XU216. D90 MQA can support 32bit768kHz and DSD512 resolutions, and the data magnitude and resolution are far beyond CD and SACD. Customized German Thesycon driver(Win7 and higher).

Bluetooth 5.0 Tech:
D90 MQA is equipped with CSR8675 chip, supports Bluetooth 5.0 well, supports LDAC/AAC/SBC/APTX/APTX LL/APTX HD and other audio encodings.24bit96kHz HD transmission can be achieved under LDAC encoding. (If you don't need Bluetooth input, you can turn it off in the menu.)

Input Interface:
AES,USB,OPT,COAX,IIS,Bluetooth input. Among them, USB, IIS support 32bit/768k DSD512 input; AES,OPT,COAX support 24bit/192k input,BT supports 24bit/96k input under LDAC; IIS input can be set in the machine, compatible with most IIS signals on the market using HDMI transmission.

AK4118 Receiver:
It is currently the lowest jitter S/PDF receiver with good compatibility. It is used for D90 MQA OPT, COAX, and AES receivers, all supporting up to 24bit/192kHz.

D90 MQA has a fully balanced structure,it is compatible with both balanced and single-ended outputs.You can choose any one output,the other is closed,or both.It is especially convenient when used with other devices.

Switchable Global Voltage:
AC 100-120V 50/60Hz uses 115V,AC 220-240V 50/60Hz uses 230V.

DAC Filter Mode:
D90 MQA provides 6 different PCM filter modes to choose from, there is always one for you.

Bluetooth Decoder Application:
Connect your mobile phone, tablet, and laptop's Bluetooth to D90 MQA,and it will become your BT decoder.If your device supports LDAC transmission,you will get better sound effects.

Technical Parameters:

USB IN:44.1kHz-768kHz/16-32bit,DSD64-DSD512 (Native),DSD64-DSD256(Dop)
IIS IN:44.1kHz-768kHz/16-32bit,DSD64-DSD512
COAX/OPT/AES IN:44.1kHz-192kHz/16-24bit
BT:AAC/SBC/APTX/APTX LL/APTX HD/LDAC

Analog output
LINE OUT RCA
Total Harmonic Distortion@ A-wt
<0.00013%@1kHz
<0.00020%@20-20khz

SNR@A-wt,Dynamic Range@ A-wt:123dB@1kHz

Frequency response
20Hz-20kHz(±0.1dB)
20Hz-40kHz(±0.3dB)

Output amplitude:2Vrms@0dBFS

Noise floor@ A-wt:<1.5uVrms
Channel crosstalk:-127dB@1kHz

LINE OUT XLR
Total Harmonic Distortion@A-wt
<0.00009%@1kHz
<0.00015%@20-20khz

SNR@A-wt,Dynamic Range@A-wt:127dB@1kHz

Frequency response
20Hz-20kHz(±0.1dB)
20Hz-40kHz(±0.3dB)

Output amplitude:4Vrms@0dBFS

Noise floor@A-wt:<2.5uVrms
Channel crosstalk:-141dB@1kHz

 

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