Radial USB-Pro 2-Channel Active Instrument Direct Box

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.

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.

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.

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.

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.

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.

I definitely recommend this DI box. very quiet and no noise from the DI.

I run live sound and needed a dependable DI I could use for background music. This box does the trick. I own multiple Radial Engineering products. They are extremely sturdy and reliable. I would highly recommend this if you want to run stereo tracks from your laptop or tablet.