Radial USB-PRO
Stereo USB Laptop DI
Order Code: USB-PROTake the drama out of your corporate audiovisual presentation with USB-PRO by Radial.
For anyone trying to get audio from a laptop, you may already have discovered that simply plugging a 3.5mm to 2 x 1/4" jack cable is not going to cut it every time. In fact, the ground loops and possible hum is so distracting, that it often makes the presentation unwatchable.
That's exactly where you need USB-PRO. It is equipped with isolation transformers that may be switched in to eliminate hum and buzz caused by stray DC voltage and ground loops.
Simply plug a USB cable from your laptop to the USB-PRO, and you then have full control over your stereo audio feed. A stereo pair of balanced XLR audio outputs with adjustable level control then feeds the signal to a microphone preamplifier, PA system, mixing console or even a powered speaker.
...more info below...
Features:
- High performance 24bit digital audio converter
- Ready to use without the need of a driver
- 3.5mm analog headphone output to check signal
- Balanced Lo-Z outputs with switchable isolation
More info - via Radial website:
Made for plug and play simplicity, the USB-Pro will automatically be listed as an available sound card in the audio settings in all popular operating systems including Windows XP, Windows 7/8, and Mac OSX.
Digital-to-analog conversion can be monitored on headphones through the 3.5mm analog output to check signal quality and level before connecting to a sound system. A mono-sum switch may be engaged to check for phasing or for connection to a mono system. Should hum or buzz caused by ground loops be encountered, two recessed side-access switches allow the user to insert isolation transformers into the signal path. To further reduce susceptibility to noise, this is augmented with a ground lift switch that lifts pin-1 on both XLR jacks.
As with all Radial products, the USB-Pro is designed to handle the rigors of professional touring. Our unique book-end design creates protective zones around the switches, connectors and controls to keep them out of harm's way. Inside, our time-tested I-beam construction assures the sensitive internal PC board will not torque, which could cause premature part failure. Finally, a full bottom no-slip pad provides mechanical isolation and electrical insulation to ensure quiet operation.
Specifications | |
|---|---|
| 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: | 84 x 127 x 48mm |
| Weight: | 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 |
