Gustard A22 Digital Analogue Converter – Black

Here we have a digital to analogue converter from relatively new company Gustard. It comes in very good condition with original factory packaging, remote control, mains cable and our usual three month warranty.
Gustard Say….
The Gustard A22 DAC uses two AK4499EQs for dual mono audio digital-to-analogue conversion, while the analogue LPF still uses the fully discrete Class A circuit. The two-channel DAC circuits are completely independent and also independently grounded, resulting in zero interference to achieve optimal performance. The 8-channel hybrid discrete IV conversion circuit fully meets the requirements for the AK4499’s large output current, and results in high sound quality from the source.
The A22 uses high-quality parts, including the CPLD programmable logic chip, self-developed logic function digital integrated circuit, built-in clock management, 2nd PLL digital shaping, DOP demodulation, and a PCM/DSD depop switch. The digital and analogue circuits each use a specially customized 50W audio dedicated toroidal transformer, which is completely independent and does not interfere with each other.
The optional built-in USB digital audio interface daughter board uses an XMOS USB audio controller, the XU208, which supports up to PCM 768 DSD 512. The A22 has a native fully balanced architecture without any conversion, and a complete two-channel fully balanced output. It supports high-quality digital volume adjustment and includes a remote control for easy adjustment of volume. Finally, it comes with a wide range of digital filter options with the PCM coming with six digital filters and the DSD coming with two.
Specifications:
Sample Rate Supported By Digital Input Channels:
COAX: PCM 16 – 24-bit/44.1 – 384 kHz; DSD DOP 64-DOP 128
AES: PCM 16 – 24-bit/44.1 – 384 kHz; DSD DOP 64-DOP 128
OPT: PCM 16 – 24-bit/44.1 – 192 kHz; DSD DOP 64
USB: PCM 16 – 32-bit/44.1 – 768 kHz; DSD DOP 64 – DOP 256; NATIVE DSD: DSD 64 – DSD 512
IIS: PCM 16 – 32-bit/44.1 – 768 kHz; DSD DOP 64 – DOP 256; NATIVE DSD: DSD 64 – DSD 512
USB input supported operating system: WIN7 SP1/WIN8/WIN10 32-64bit; macOS; Linux
Analog Output Performance:
Amplitude Frequency Response: 20 – 20 kHz /±0.1 dB
DNR: 128 dB
Crosstalk: – 137 dB @ 1 kHz
THD+N: < 0.0004% 20 – 20 kHz
IMD: < 0.0008% @ – 3 dBfs
RCA Output Level: 3 Vrms (Volume 0.0 dB)
Output Impedance: 100 ohms
XLR Output level: 6.0 Vrms (Volume 0.0 dB)
Output Impedance: 100 ohms
AC Power Supply: AC 115 V/230 V 50/60 Hz
Power Consumption: < 30 W
Dimensions: 330 (W) x 260 (D) x 65 (H) mm
Weight: 7.0 kg (including packaging)