Alto ACL4 - Dynamics Processor

Alto ACL4 - Dynamics Processor

Alto ACL4 - Dynamics Processor

Alto ACL4 - Dynamics Processor

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Product Highlights

  • 4 Channel
  • Compressor
  • Limiter
  • Mono or Dual Stereo Operation
  • Soft Knee and Hard Knee Modes
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  • 1Description

The ACL4 from Alto is a quad channel compressor/limiter that features very user-friendly architecture for fast and reliable compression and limiting. The compressor attack and release times are automatically set dependent on the source material.

Smart Knee Control allows for musical and inaudible compression, while Smart Gain Control automatically reduces the output signal to avoid distortion. The unit can function as either 4 separate processors, or dual-stereo linked to provide real stereo compression on adjoining modules. LED meters on each channel display gain reduction and input/output levels.

Quad channel compressor/limiter
Includes auto attack and release times based on input signal analysis
Smart Knee Control Compressor (SKC) delivers a "soft knee" compression envelope with lower compression thresholds, and changes to a "hard knee" function with heavier compression
Smart Gain Control peak limiter activates above a certain user adjustable threshold to radically restrict signal peaks
Couple Switch engages stereo mode operation where channel 1 and 3 becomes the master channels and override all the controls and switches of channel 2 and 4
Gain reduction LEDs
Switchable input/output level LED meters
Bypass switches on all channels
In the Box
Alto ACL4 - Dynamics Processor
  • AC Power Cable
  • One (1) Year Warranty
  • Table of Contents
    • 1Description
    Function Compressor/limiter
    Number of Channels 4
    Inputs 4 x XLR
    4 x 1/4" TRS phone
    Outputs 4 x XLR
    4 x 1/4" TRS phone
    Maximum Input Level +21dBu
    Compression Threshold -40dB to +20dB
    Compression Ratio 1:1 to infinity:1
    Attack Time Program dependent
    Release Time Program dependent
    Gate Threshold Not applicable
    Gate Rate Not applicable
    Maximum Output Level +21dBu
    Make-up Gain -20dB to +20dB
    Frequency Response 20Hz to 20kHz, +0/-0.05dB
    Dynamic Range 125dB
    Noise THD+N: 0.01% typical, 1kHz @ +4dBu
    Power Requirements 95~120VAC/210~240VAC, 50/60Hz
    Dimensions (WxDxH) 19 x 7.7 x 1.75" (483 x 195 x 45mm)
    Weight 6.8 lbs (3.1kg)
    Specialties Smart knee control
    Packaging Info
    Box Dimensions (LxWxH) 22.0 x 15.0 x 4.5"

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