Radial Engineering USB-Pro Stereo USB Laptop DI
this item may be nonreturnable
Features
- Connect a Computer to a PA or Mixer
- Built-In 24-Bit / 96 kHz Convertor
- 2 x Balanced XLR 3-Pin Outputs
- 3.5mm Stereo Headphone Output
- USB Type-B Input
- Operates on USB Bus Power
Description
The Radial Engineering USB-Pro is a stereo USB laptop DI that offers high-resolution conversion and a convenient plug-and-play solution for connecting a Mac or Windows computer to a PA system or mixing console. Additionally, it includes an integrated headphone amplifier for easy signal monitoring at the DI.
The USB-Pro is equipped with two balanced XLR 3-pin outputs, allowing for microphone- or line-level input compatibility with the help of the unit's level control. Its auto-sensing USB input automatically configures the USB-Pro for digital input streams of up to 24-bit / 96 kHz resolution. Moreover, being bus powered via USB, it eliminates the need for batteries, phantom power, or bulky power adapters.
By engaging the mono switch, users can check for phasing, reduce the channel count on their mixer, or duplicate signals to the two XLR outputs. In case of ground loop-related hum or buzz, the side-panel switches enable the insertion of isolation transformers into the signal path. To further minimize susceptibility to noise, the USB-Pro includes a ground-lift switch that lifts pin 1 on the XLR outputs.
Constructed with rugged 14-gauge steel and Radial's bookend design, the USB-Pro ensures reliable durability for on-the-road use. Additionally, its no-slip pad provides both mechanical and electrical isolation, further enhancing its performance and longevity.
Specifications
| Circuit Type | Custom Decoder with Analogue Line Drive |
| Inputs | 1 x USB Type-B |
| Outputs | 2 x XLR 3-Pin Male Balanced Mic/Line Outputs 1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output |
| USB Compatibility | USB 1.1 Full Speed |
| Bit Depth | 24-Bit, 16-Bit |
| Sampling Rate | 44.1, 48, 88.2, or 96 kHz (Set by Host Computer) |
| File Compatibility | WDM, MME, ASIO, CoreAudio, DirectSound, WASAPI, and WAV |
| System Requirements | macOS Windows XP or Later |
| Frequency Response | 5 Hz to 40 kHz (30 Hz to 18 kHz with Isolation) |
| Dynamic Range | >90 dB |
| Noise | <-90 dB |
| Maximum Output Level | +8 dBu |
| Total Harmonic Distortion | <0.01% |
| Stereo Separation | 75 dBu |
| Output Impedance | XLR Output: 250 Ohms (Nominal) Headphone Output: 8 to 400 Ohms |
| Isolation | Switchable per Channel |
| Ground Lift | Switchable (Lifts Pin 1 on Both XLR Outputs) |
| Power Requirements | USB Bus Power, 500 mA Maximum |
| Operating Temperature | 41 to 104°F / 5 to 40°C |
| Construction | 14-Gauge Steel Chassis and Outer Shell |
| Dimensions | 3.3 x 5 x 2" (83.8 x 127 x 50.8 mm) |
| Weight | 1.5 lb / 0.7 kg |
In The Box
- Radial Engineering USB-Pro Stereo USB Laptop DI
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Details
- Product: Radial Engineering USB-Pro Stereo USB Laptop DI
- Manufacturer: Radial
- Model: R800 1050
- SKU: RA-USB-PRO
- RM Product #: 108345
- Warranty: 5 year manufacturer warranty
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