



RA-USB-PRO
The Radial USB-Pro is a stereo direct box designed to convert a USB digital audio stream to analog. It features true 24- bit processing to deliver pristine audio and it automatically self-configures without a driver for Windows XP, Windows 7/8, and Mac OSX. Features include a ground lift and switchable transformer isolation to eliminate hum and buzz caused by ground loops, stereo balanced XLR outputs and a headphone out for testing. Plug and play easy to use, the USB-Pro has already become a favorite around the globe to get perfectly clean sound out of your laptop computer.
Type: DI Boxes
| Specifications | |
|---|---|
| Specifications are subject to change without notice. | |
| Audio circuit type: | Custom decoder with analog line drive |
| USB compliance: | USB 2.0 full speed |
| Bit depth: | 24bit (16bit capable) |
| Sampling rate: | 44.1kHz / 48kHz auto sensing |
| Sound file compatibility: | WDM, MME, CoreAudio and DirectSound |
| Software compatibility: | Windows XP/Vista/Win7/Win8 and Mac OS |
| Frequency response: | 5Hz ~ 40kHz (30Hz ~ 18kHz with isolation) |
| Dynamic range: | >90dB |
| Noise floor: | -90dB |
| Maximum gain: | +8dBu |
| Total harmonic distortion: | 0.01% |
| Stereo separation: | 75dBu |
| Output impedance: | 300Ω nominal |
| Features | |
| Digital input: | USB connector B-type |
| Analog output: | Stereo balanced mic level (2 x XLR-M) |
| Headphone output: | 3.5mm TRS |
| Level control: | Variable, works on headphone and XLR outputs |
| Isolation: | Switchable for each channel |
| Mono switch: | Sums left & right inputs to mono |
| Ground lift: | Lifts pin-1 on both XLR outputs |
| General | |
| Power: | USB bus powered 500mA maximum |
| Finish: | Durable powder coat |
| Size: | 3.3" x 5.0" x 2" (84 x 127 x 48mm) |
| Weight: | 1.5 lb (680 g) |
| FCC approval: | Complies with section 15 of the FCC Rules |
| Conditions: | For use in dry locations only between 5°C and 40°C |
| Warranty: | Radial 3-year, transferable |