The Radial Engineering USB-Pro is a stereo USB laptop DI offering high-resolution conversion and an easy plug-and-play solution for connecting a Mac or Windows computer to a PA system or mixing console. Plus, its integrated headphone amplifier allows convenient signal monitoring at the DI.
The USB-Pro features two balanced XLR 3-pin outputs, which can feed mic- or line-level inputs thanks to the unit's handy level control. The auto-sensing USB input automatically configures the USB-Pro for digital input streams up to 24-bit / 96 kHz resolution. Since the USB-Pro is bus powered via USB, it requires no batteries, phantom power, or bulky power adapters.
Engage the mono switch to check for phasing, reduce the channel count on your mixer, or facilitate signal duplication to the two XLR outputs. Should hum or buzz caused by ground loops be encountered, the side-panel switches let you 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 the XLR outputs.
Rugged 14-gauge steel construction along with Radial's bookend design ensure road-worthy reliability while the no-slip pad provides mechanical and electrical isolation.
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Key Features
- Connect a Computer to a PA or Mixer
- Built-In 24-Bit / 96 kHz Converter
- 2 x Balanced XLR 3-Pin Outputs
- 3.5mm Stereo Headphone Output
The Radial Engineering USB-Pro is a stereo USB laptop DI offering high-resolution conversion and an easy plug-and-play solution for connecting a Mac or Windows computer to a PA system or mixing console. Plus, its integrated headphone amplifier allows convenient signal monitoring at the DI.
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$289.99
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Radial Engineering R800 1050 Overview
Plug-and-play operation requires no drivers
Built-in headphone amplifier for monitoring
USB Type-B input for streaming audio from a Mac or Windows computer
Up to 24-bit / 96 kHz resolution with automatic format recognition
Balanced low-impedance XLR outputs
3.5mm stereo headphone output jack
Level control adjusts the main and headphone output signals
Mono switch with LED indicator sums the stereo input to mono to reduce the channel count or feed two devices at the same time
Operates via USB bus power
Power LED indicator
Rugged 14-gauge steel chassis and outer shell
Bookend design creates a protective zone around the jacks and switches
No-slip pad provides mechanical and electrical isolation and keeps the unit from sliding around
Ground-lift switch helps eliminate buzz and hum from ground loops
Per-channel isolation switches insert isolation transformers into the signal path to help prevent extraneous noise caused by ground loops
UPC: 676101040599
Radial Engineering R800 1050 Specs
General
| Item Type | |
| Number of Channels | |
| Active/Passive | |
| Circuitry |
Preamp
| Pad | |
| Ground Lift | |
| Polarity Reverse |
EQ & Tone Shaping
| Low-Cut/High-Pass Filter |
Connectivity
| Audio I/O | |
| USB I/O |
Performance
| Frequency Response | |
| Output Impedance | |
| Total Harmonic Distortion/Noise | |
| Signal-to-Noise Ratio |
Power
| Operating Voltage |
Physical
| Dimensions | |
| Weight |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Radial Engineering R800 1050 Reviews
Radial never disappoints
By Adam
Rated 5 out of 5
Date: 2026-10-06
Great features and durability, seconds as a blunt weapon too! It’s hard to put a price on a balanced stereo DAC that will survive until the sun explodes. I’m also sure it could stop a bullet.
Worth the Money
By Jason
Rated 5 out of 5
Date: 2025-02-07
I do a lot of events were the presenters of giving power point presentation that often include video. Many different laptop brands and models. The audio output they would send me was not always reliable. I saw the need for this USB DI but was hesitant because of the price. I went ahead and invested in this and am more than happy with it. The plug and play ease and audio quality is fantastic. And it's build like a tank. I highly recommend this product. I will be buying more Radial Engineering boxes in the future.
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