HP-A3
32bit DAC
Compact 32-bit DAC + high-quality headphone amplifier powered by USB bus power.
Features
USB bus-powered power supply.
Dedicated PLL power supply for higher stability by regenerating the power supply.
The headphone amplifier is capable of driving high-impedance headphones used in studios.
AKM 32-bit DAC AKM AK4390 is used.
High-grade audio capacitors, high-end audio OP amplifiers, and other carefully selected analog components are used.
USB/digital (OPTICAL) input selector.
Headphone/RCA (analog) output selector.
Specifications
Main Specifications
| input | |
|---|---|
| USB terminal | |
| sampling frequency | Max. 24bit/96kHz |
| interface | USB Full Speed |
| Supported OS | Windows 7 or higher, Mac OS X V10.6 to macOS10.12 Sierra |
| DIGITAL INPUT terminal | |
| connector | Rectangular Optical |
| (computer) format | S/PDIF (32kHz to 96kHz) |
| output (e.g. of dynamo) | |
| PHONES jack | |
| connector | Stereo Standard Jack |
| Applicable load impedance | 16 ohm or more |
| Maximum output | 100mW+100mW (32 ohm load) |
| THD | 0.04% or less (at 1kHz, 32Ω load 100mW output) |
| ANALOG OUTPUT(L, R) pins | |
| connector | RCA pin jacks |
| Reference Output Level | -10dBV |
| THD | 0.01% or less (at 1kHz) |
| DIGITAL OUTPUT terminal | |
| connector | Rectangular Optical |
| (computer) format | S/PDIF |
| general | |
| accessory | USB cable (1m x 1), rubber feet (x 4) |
| External dimensions | W108 × H(excluding feet)36 × D(including protrusions)140 mm |
| Mass of main unit | Approx. 450g |
| power (button on TV, etc.) | DC5V (supplied from USB terminal) |
| Power consumption | 2.5W |
*This product complies with the European RoHS Directive.