Alto Professional ACL2 Pro - Dynamics Processor

The ACL2 Pro from Alto is a dual channel compressor/limiter/gate that features several innovative circuit designs. The compressor attack and release times can be automatically set dependent on the source material, or full manual control can be exercised.

The unit can function as either 2 separate processors, or stereo linked to provide real stereo compression. An adjustable expander/gate and very low distortion Voltage Control Amplifiers (VCA) deliver smooth sound.

A sidechain function allows the ACL2 Pro to be placed in an external effects loop, while a second, internal sidechain employs a switchable low-cut filter to help control pumping due to heavy low frequency content. LED meters on each channel display gain reduction and input/output levels.