DAC type USB and Optical
Inputs USB audio SPDIF Optical
D/A converter AKM4396
USB transfer mode Asynchronous dual clock
USB controller TI1020B
USB device class Type 1.1 or above
Input bit depth 16 bit, 24 bit
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 2.0V RMS
Output impedance 2 ohms
Recommended headphone impedance range 10 ohms to 10K ohms
Headphone amplifier OPA2134
Optical receiver CS8416
Frequency response 10Hz-25KHz (+/- 0.5dB)
SNR (DC to 20 kHz) >110dB
THD+N (1kHz FS 96kS/s)<0.0025%
Crosstalk -85db
Input bit depth 16 bit, 24 bit
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 5V DC, 200mA
USB power filtering 2-stage redundant regulation
Product dimensions 3.5—3.75—1 (89x95x25mm)
Shipping weight 1.0lbs (0.5kg)
Environmental Operating Temperature: 32 to 95 degrees F Non-operating Temp: -4 to 113 degrees F Relative Humidity: 5% to 95% non-condensing
Included accessories USB cable, 2ft Setup guide Microfiber bag
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. |