Great, Low cost quad gate for your live rig or in the studio. Priced low because the 4th gate seems to be having issues. I can get it to trigger by messing with the release and hold, but its not very consistent, even after some cleaning. All of the other three work as expected! Also has a bit of rack rash and scratches on the top from being moved around.
From Sweetwater:
The Behringer Multigate Pro XR4400 is a high-quality 4-channel expander/gate ready for use in your rig. Keep noise to a minimum with this dynamic gate. Each channel of the XR4400 gives you controls for threshold, ratio, hold, release, frequency, and bandwidth. With a lightening-fast attack time, you'll easily gate even the speediest drum parts. The sidechain's filters let you really dial in the control signals to nail gate functionality, only letting it react when you want it to. Every channel features servo-balanced I/O with XLR and TRS connectors for maximum flexibility.