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Your cart is empty.The Best Way to Get Laptop Audio Into a Sound System! If you've ever tried connecting the headphone jack of a computer directly to a sound system, you know that buzz, hum, and interference can completely ruin the experience. With Radial's USB-Pro stereo USB laptop DI, you connect to your Mac or PC via USB (no driver necessary) and get crisp, clear 24-bit/96kHz audio quality. Two balanced XLR outputs let you connect with mixers and PA systems, giving you noise-free sound even over long cable runs. The USB-Pro is so effective — at Sweetwater, we feel it belongs on every stage and in every public auditorium!Radial USB-Pro DI Features Eliminates the hum and buzz from computer headphone/line outputs High-performance 24bit/96k stereo direct box Balanced stereo lo-Z output stays noise-free even over long cable runs Connects to your laptop via USB Lets you plug into balanced outputs via XLR cables Driverless
adam dallman
Reviewed in the United States on February 13, 2025
Perfect for laptop and play performances w sound man
Aaron
Reviewed in Canada on January 3, 2025
I'm a huge fan of Radial products normally, but this one seems to miss the mark.The Radial USB-Pro works great in some situations, no software needed, easy to use, built tough, but it requires power from the device connected. All Apple mobile products sense when a device is connected and tries to draw power and immediately gives an error message and won't let it connect. You can get around this by buying an adapter that allows you to connect both to the device and a power source, but now you've got a mess of cables and connections.I've also experienced audio drop outs on the right channel. At first I blamed it on the devices connected, I'd unplug the USB cable, reconnect and everything would work great again. 6 months later of still struggling with periodic drop outs, I noticed that if I wiggled the cable close to the Radial USB-Pro, the right audio track would come back. I replaced the cable thinking maybe it was damaged, but the problem continues (I'm also uncertain how a digital signal could possibly drop one side of the audio due to a "bad" cable).For non critical playback, or mono playback it works, but I can't trust this for anything important. This is not like all of my other Radial products which are rock solid decades later. I'm contacting Radial to see if anything can be done to make this more reliable, but in the mean time, I've purchased a Sonnect Soundwire with hopes of a simpler and more reliable solution to my playback demands.UPDATERadial support reached out with multiple suggestions on how to diagnose the problem. Embarrassingly enough, the problem with dropouts was likely caused by the XLR cable I was using. 1 week after replacing the XLR cables used, I've not had any dropouts. As I've said before, I'm a huge fan of Radial Engineering, the only downside now is the power injection problem when using Apple products.
David B
Reviewed in the United States on March 22, 2023
I definitely recommend this DI box. very quiet and no noise from the DI.
Marc Gladstone
Reviewed in Canada on August 30, 2022
This makes my live setup so much easier and sounds great!!
Gaspare
Reviewed in the United States on November 20, 2022
I use this product live on stage in a working band. This is the second time I’ve purchased this interface. I should’ve learned my lesson the first time. For some reason, the device just stops working. It got so bad that I kept trying my keyboard up until the time we started our first song of the night this past weekend I checked it one minute before we were ready to go on, and then when hit the first note, no signal at our digital mixer, which is an XR. I have to unplug the USB, plug it back in, And it will work for an undetermined amount of time until it fails again. again, this is my second time I’ve purchased this, and I should’ve learned my lesson the first time. As it turns out the headphone jack on the back of my studio is designed to run to a mixer. I don’t really need this device anyway and now I’m past the date, I can return it, I wanted this to work so bad, but for me, I can’t have this happening every gig.
funkmaster777
Reviewed in the United States on July 19, 2021
Great option for keyboardists who play live with softsynths through an iPad or Mainstage/Ableton Live through a laptop. Super build and sound quality. Great alternative to the Radial Key Largo if you don't have to mix other gear.
God's servant
Reviewed in the United States on December 23, 2021
Sound is much better than coming out of the audio output on the motherboard, took a little fiddling to get the levels set right, it shows up as a sound output in Windows, so have to set volume on computer, set level on the DI, and the gain on the board. Radial products are an easy, great sounding, long lasting answer to connecting sound sources in our church.
Raijin
Reviewed in the United States on April 8, 2020
Super easy macOS setup: Find a USB cable (it's not included) and plug it in. This is USB powered so no additional power is needed. Open up "System Preferences" then click on "Sound". Under "Select a device for sound output:" select "Radial USB Pro Output" and that's it. There are no drivers to install. Sounds great. There's plenty of gain even for the most stubborn headphones.
Vivianne S. Duval
Reviewed in Canada on January 23, 2017
Love it...
Cary H
Reviewed in the United States on March 20, 2016
The Radial USB-Pro Stereo USB laptop DI box works great. I use it to run .wav files from a laptop through my tube compressor into my DAW with zero quality loss. (unlike using the high impedance out of a headphone jack which is a very noticeable loss in dynamic range and overall sound.) The beautiful part of the process is the drivers seem to be included in this device and when I plugged it in to my Windows 7 64bit laptop the device just worked. I am very happy with Radial products and have a handful of their di boxes. I will continue to use their products as they are solid, transparent and reliable.
AlexSG
Reviewed in the United States on September 26, 2015
NiceProduct!!!, sturdy compact design, good for traveling but a little heavy, easy to use with any computer (Windows or Mac), a great solution in some professional playbacks situations, I loved it!The reason I gave it 4 stars is because I do not understand that you pay $229.99 for an USB product and it does not come with an USB cable, so it is a plug and play device... but not right out of the box.
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