This manual provides operating instructions, menu settings, remote control usage, and technical specifications for the Gustard A20H DAC and headphone amplifier.
The Gustard A20H is a desktop DAC and headphone amplifier featuring a large OLED display and a front panel with a power switch, volume knob, and function buttons. The device supports multiple digital inputs including COAX, AES, USB, IIS, and OPT, allowing users to select channels and adjust volume directly from the front panel. The OLED screen displays real-time status information such as input channel, encoding format, and sampling rate. This manual is written in Chinese.
| Frequency Response (DAC) | 20-20kHz /-0.1dB |
|---|---|
| Signal-to-Noise Ratio (DAC) | >122dB |
| Total Harmonic Distortion (DAC) | <0.0009% |
| Frequency Response (Amp) | 20-20kHz /-0.2dB |
| Max Output Power (32Ω) | 2400mW |
| Power Consumption | <50W |
| Dimensions | 330mm x 65mm x 260mm |
There are 6 PCM digital filter types available: SHARP, SLOW, SUPER SLOW, SHORT SHARP, LOW-d SHOT, and SHORT SLOW.
The HIGH gain setting provides a signal amplitude that is 12dB higher than the LOW setting.
When PRE MODE is OFF, the RCA and XLR outputs provide the DAC decoded signal directly without volume adjustment.