Selling Behringer Multigate Pro XR4400. The Behringer Multigate Pro XR4400 is a high-quality 4-channel expander/gate. 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. Price is 50.00. Call/Txt.