Overview

500 Series Compressor / Limiter

The PWM-501 is an ultra fast, ultra versatile compressor in 500-series format. It uses a unique Pulse Width Modulator as the gain control element, delivering the speed of the FET and VCA compressors with a character of its own. This all-round compressor features a continuous variable ratio control ranging from 1:1 all the way up to 20:1 and attack and release time controls ranging from 0.01 ms to 0.7ms for the former and 0.01 all the way up to 5s. The PWM-501 features a Feedback and Feedforward control knob offering feedforward or feedback topology as well as a hi-pass filter side-chain EQ to limit unwanted trigger by the low-end such as a kick drum. Two units can be easily be linked for stereo operation.

Product Details

  • Pulse width modulated compressor / limiter
  • Unique new design from Great River
  • Output level, threshold, ratio, attack, and release settings
  • Sweepable Feedback and Feedforward control
  • Stereo linkable with 2 units
Dimmensions (w x h x d)
38 x 133 x 153 mm (1 spaces '500' rack)
Ratio
1:1 to 20:1, continuously variable
Attack time
0.01ms to 0.7ms
Release time
0.01s to 5s
Topology
Feedforward / Feedback, sweepable
Sidechain-Filter
Variable Highpass with on/off switch