PreSonus ACP88 - 8 Channel Compress/Limiter with Gate

PreSonus ACP88 - 8 Channel Compress/Limiter with Gate

PreSonus ACP88 - 8 Channel Compress/Limiter with Gate

PreSonus ACP88 - 8 Channel Compress/Limiter with Gate


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  • 1Description

The ACP88 comprises eight channels of compression, brick wall limiting and seamless noise gating for a variety of applications. Each channel of the unit contains an audio compressor, which can also be setup as a limiter by varying the ratio of compression. The user has control over threshold, ratio, attack and release for each processor, in addition to selecting between auto or manual attack and release curves, and hard or soft knee compression types.

Additionally each channel of the ACP-88 has a separate dynamic noise gate, that can be used to gate an entire drum kit, clean up a noisy tape machine, isolate an instrument or separate a vocal from background noise. Each noise gate provides control over attack, threshold, release and gate close range. The gate close range can be useful in creating a more natural sounding blend or mix when gating many instruments at once.

Using the Link function allows the user to combine any combination of ACP-88 channels, effectively forming a sub-group. When linked, all processors follow the setting of the master processor, which is always the processor furthest to the left in a link group. For example, one could link together channels 7 and 8 to form a stereo pair, channels 3, 4 and 5 to form a subgroup of processors, while leaving channels 1, 2 and 6 available for independent applications such as compression, limiting, or gating as the situation dictates. In addition, every channel has separate bypass and gain controls.

A compressor sidechain jack is available on every channel. When multiple channels are linked together, the send of the master channel sidechain jack contains a mix of all the channels in the link, which allows control over multiple channels of processing with one sidechain send/return.

Eight channels of compression/limiting with full function gates
Full control over compression threshold, ratio, attack and release
Auto Mode
Sets program dependent release with medium/fast attack
Hard/Soft Knee switch on each channel
Full featured gates allow control over threshold, attack, release, and two position gate range
De-essing, ducking and other forms of spectral processing can be accomplished using the independent sidechains for both compressor and gate, provided on all channels
Link button allows for the true stereo or sub-group link operation
In the Box
PreSonus ACP88 - 8 Channel Compress/Limiter with Gate
  • Power Cable
  • One Year Warranty
  • Table of Contents
    • 1Description
    Function Compressor/Limiter and Gate
    Number of Channels 8
    Inputs 8 x 1/4" TRS phone
    16 x 1/4" TRS phone Sidechain
    Output 8 x 1/4" TRS phone
    Maximum Input Level Not specified by manufacturer
    Compression Threshold -40dBu to +20dBu
    Compression Ratio 1:1 to 20:1
    Attack Time 0.02ms to 200ms
    Release Time 0.5ms to 500ms
    Gate Threshold -70dBu to +20dBu
    Gate Rate Attack: 0.01ms to 100ms
    Release: 0.02ms to 2 sec
    Maximum Output Level +24dBu
    Make-up Gain -20dB to +20dB
    Frequency Response 10Hz to 50kHz
    Dynamic Range 115dB
    Noise >95dB
    Dimensions 2U rack mount, 7" deep
    Specialties Unit will operate at either +4dB or -10 dB, switchable
    Packaging Info
    Package Weight 12.0 lb
    Box Dimensions (LxWxH) 23.0 x 12.0 x 8.5"

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