8 full-featured compressors/limiters/gates in the Presonus ACP-88 8-Channel Compressor/Gate transparently control unwanted noise and bleed-through. Control vocals, tame drums, protect speakers, tighten low endall from just 2 rackspaces. Each compressor features control of threshold, ratio, attack, release, hard/soft knee, auto/manual attack and release curves, and gain. Has balanced or unbalanced inputs and floating balanced or unbalanced outputs. There are 2 side chains for every channel: one for spectral compression, one for gate processing. Each channel has full gain reduction metering, compression threshold indicators, and gate open/close.8 full-featured compressor/limiters 8 full-featured gates Side chain on every channel Trigger inputs on every channel Balanced/unbalanced 1/4" I/O Comprehensive linking via unique power summing bus Spectral processing and gate keying via separate jacks +4/-10 stereo operating level