G4 Quad Gate on August 31, 2015 | Marketing Team Dynamics controls include: Gate / Expand / Duck Modes Look-ahead Gating Stereo Link Adjustable Threshold, Attack, Release, Hold, Depth and Ratio Gain Reduction / Gate meter Bypass Side-chain processing includes: Side-Chain metering Internal Low- and High-Cut Filters Internal / External switch Listen switch This product has not been tested to the current CE requirements and is not available in markets requiring CE compliance.