Audioengine D1 24-Bit DAC/Headphone Amplifier (90021970)

SPECIFICATIONS

DAC typeUSB and Optical InputsUSB audio SPDIF Optical D/A converterAKM4396 USB transfer modeAsynchronous dual clock USB controllerTI1020B USB device classType 1.1 or above Input bit depth16 bit, 24 bit Input sample rate (USB)32kHz-96kHz native playback 188.2kHz & 192kHz re-sampled to 96kHzInput sample rate (optical)32kHz-192kHz native playback OutputsAnalog RCA L/R stereo Analog 3.5mm mini-jack stereo Full-scale output level2.0V RMS Output impedance2 ohms Recommended headphone impedance range10 ohms to 10K ohms Headphone amplifierOPA2134 Optical receiverCS8416 Frequency response10Hz-25KHz (+/- 0.5dB) SNR(DC to 20 kHz) >110dB THD+N(1kHz FS 96kS/s)<0.0025% Crosstalk-85db Input bit depth16 bit, 24 bit Input sample rate (USB)32kHz-96kHz native playback 188.2kHz & 192kHz re-sampled to 96kHzInput sample rate (optical)32kHz-192kHz native playback Power requirementUSB 5V DC, 200mA USB power filtering2-stage redundant regulation Product dimensions3.53.751 (89x95x25mm) Shipping weight1.0lbs (0.5kg) EnvironmentalOperating Temperature: 32 to 95 degrees F Non-operating Temp: -4 to 113 degrees FRelative Humidity: 5% to 95% non-condensing Included accessoriesUSB cable, 2ft Setup guide Microfiber bag D1 Internal ConverterThe 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 AmplifierThe 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 PowerThe 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 ControlVolume is controlled directly from the D1 front panel via the digitally-controlled analog potentiometer.