DAC type
Inputs
D/A converter
USB transfer mode
USB controller
USB device class
Input bit depth
Input sample rate (USB)
- 32kHz-96kHz native playback
- 188.2kHz & 192kHz re-sampled to 96kHz
Input sample rate (optical)
- 32kHz-192kHz native playback
Outputs
- Analog RCA L/R stereo
- Analog 3.5mm mini-jack stereo
Full-scale output level
Output impedance
Recommended headphone impedance range
Headphone amplifier
Optical receiver
Frequency response
SNR
THD+N
- (1kHz FS 96kS/s) <0.0025%
Crosstalk
Input bit depth
Input sample rate (USB)
- 32kHz-96kHz native playback
- 188.2kHz & 192kHz re-sampled to 96kHz
Input sample rate (optical)
- 32kHz-192kHz native playback
Power requirement
USB power filtering
- 2-stage redundant regulation
Product dimensions
Shipping weight
Environmental
- Operating Temperature: 32 to 95 degrees F
- Non-operating Temp: -4 to 113 degrees F
- Relative Humidity: 5% to 95% non-condensing
D1 Internal Converter
- The D1 uses the AK4396 DAC, which is well-regarded for its low noise and high fidelity. Due to the high signal-to-noise specs of the AK4396 and the added benefit of double redundancy power source conversion and filtering, the D1 presents impressive low noise and low distortion characteristics. The D1 can process digital audio at any bit depth up to 24-bits and any sample rate up to 192kHz.
D1 Headphone Amplifier
- The D1 includes a headphone amp based on the TI OPA2134 low noise opamp. The high-performance headphone output was designed for a wide range of headphones and will satisfy even the most demanding headphone enthusiasts.
D1 Power
- The D1 is powered directly from the USB bus and power is passed through two stages of regulation to ensure no USB bus power variations affect the audio quality.
D1 Volume Control
- Volume is controlled directly from the D1 front panel via the digitally-controlled analog potentiometer.