Presonus ACP88 ACP88 Eight channel compressor limiter gate

One of our all-time most popular products, the ACP88 delivers the classic analog compression that helped establish PreSonus as a leading signal-processor manufacturer. With eight independent, full-featured compressor/limiters and gates, the ACP88 can solve a host of thorny studio and live-sound problems.

Each channel provides a fully variable compressor with a sidechain send and return to enable spectral processing and ducking. In addition to the usual attack, release, ratio, threshold, and makeup gain controls, each compressor offers selectable soft- or hard-knee compression and an Auto Attack feature that overrides the manual controls and applies preset attack and release curves. A six-segment LED meter displays the amount of gain reduction.

The compressor/limiter is followed by a full-featured gate with attack, release, and threshold controls; a gate-range switch, which determines the amount of level reduction that occurs when the gate closes; and a sidechain/key insert loop that enables the gate to be opened, or “keyed,” in response to a modified version of the program signal or some other external source.

• 8 independent channels, each with:
  • Full-featured analog compressor/limiter
    • Attack, Release, Ratio, Threshold, and (makeup) Gain controls
    • Auto Attack button
    • Soft/hard knee switch
    • Sidechain send/return
    • 6-segment LED gain-reduction meter
  • Full-featured gate
    • Sidechain/key insert send/return
    • Attack, Release, and Threshold controls
    • Gate-range switch
  • Bypass switch
  • Channel Link button (can link multiple channels)
  • +4 dBu/-10 dBV operating-level switch
• Input/Output
  • For each channel (x 8 channels):
    • 1 balanced ¼” TRS line input
    • 1 balanced ¼” TRS line output
    • 1 unbalanced TRS ¼” compressor sidechain send-return
    • 1 unbalanced TRS ¼” gate sidechain/key insert send-return
• Physical
  • 2U 19” rack-mountable, rugged steel chassis
  • Internal power supply with standard IEC connector