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Radial Engineering USB-Pro Stereo USB Laptop DI

BH #RAUSBPRO • MFR #R800 1050
Radial Engineering
Radial Engineering USB-Pro Stereo USB Laptop DI
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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Radial Engineering R800 1050 Overview

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.

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

Circuit TypeCustom Decoder with Analog Line Drive
Inputs1 x USB Type-B
Outputs2 x XLR 3-Pin Male Balanced Mic/Line Outputs
1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output
USB CompatibilityUSB 1.1 Full Speed
Bit Depth24-Bit, 16-Bit
Sampling Rate44.1, 48, 88.2, or 96 kHz (Set by Host Computer)
File CompatibilityWDM, MME, ASIO, CoreAudio, DirectSound, WASAPI, and WAV
System RequirementsmacOS
Windows XP or Later
Frequency Response5 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 Separation75 dBu
Output ImpedanceXLR Output: 250 Ohms (Nominal)
Headphone Output: 8 to 400 Ohms
IsolationSwitchable per Channel
Ground LiftSwitchable (Lifts Pin 1 on Both XLR Outputs)
Power RequirementsUSB Bus Power, 500 mA Maximum
Operating Temperature41 to 104°F / 5 to 40°C
Construction14-Gauge Steel Chassis and Outer Shell
Dimensions3.3 x 5 x 2" (83.8 x 127 x 50.8 mm)
Weight1.5 lb / 0.7 kg
Packaging Info
Package Weight1.82 lb
Box Dimensions (LxWxH)6.4 x 4.2 x 2.85"

Radial Engineering R800 1050 Reviews

Enables great sound from laptop to portable PA speaker.

By Jacob
Rated 5 out of 5
Date: 2021-02-03

Connected a portable PA system via the XLR. Super easy - shows up as a speaker output without any setup. The mono button worked great for our single speaker. Sound was clean and we could utilize the full power of the PA without quality issues.

Easy to use and sounds great!

By Michael P.
Rated 5 out of 5
Date: 2015-06-21

Sounds Amazing! You can definitely here a difference in sound quality. I do a lot of A/V events and the USB-Pro helps with the buzz you sometimes get from laptops.

This is great!

By Rich C
Rated 5 out of 5
Date: 2015-05-12

I use this to go direct into a sound system as part of my live keyboard rig. Perfect with volume control, mono sum, etc. A very clever and useful piece!

Sounds Great!!

By Mitch
Rated 5 out of 5
Date: 2015-01-26

ust plug-n-play on Windows , no drivers needed. Sounds great!

Get it

By Isaac
Rated 5 out of 5
Date: 2020-06-30

If you’ve ever had issues with using a headphone amp (out) from your device for push to your PA, this fixes your issue. Great stereo sound with clear signal. Perfect for lower volume videos.

Get it

By Isaac
Rated 5 out of 5
Date: 2020-06-30

If you’ve ever had issues with using a headphone amp (out) from your device for push to your PA, this fixes your issue. Great stereo sound with clear signal. Perfect for lower volume videos.

Bullet proof (literally)

By Chad
Rated 5 out of 5
Date: 2019-06-11

Works perfectly! It's also built like a tank, so I'd be willing to bet this thing could take some serious abuse as well.

Powerful

By PhearNone
Rated 5 out of 5
Date: 2016-07-12

Great way to get a clean crisp stereo sound out of your laptop and not worry about 1/8 inch chords and the sometimes ginger headphone port on laptops. This purple box is built like a tank. I wish radial would make a thunderblot version.

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