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Chameleon Labs 7721 Stereo VCA Compressor

7721 Stereo VCA Compressor with Soft Knee / Hard Knee, Peak / RMS, High-Pass Filter, Classic Controls, Blend, and VU Meter.


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MSRP: Old Price $899.00 Discounted Price $799.00 Save : $100.00 (11%)
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MSRP: Old Price $899.00 Discounted Price $799.00 Save : $100.00 (11%)
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When designing the 7721, Chameleon's engineers started with a clean sheet of paper and deeply evaluated the details associated with developing a bus compressor for the modern studio. Basing detection and voltage control on a voltage control amplifier (VCA) topology and designing a circuit that provides low noise and transparency the team created an acoustic "glue" that is capable of consistently delivering punch and loudness to the signal.

- Soft Knee / Hard Knee – Allows you to change between a softer arriving compression effect and a faster arriving, limiting type effect.

- Peak / RMS – This control allows you to choose between the Peak and RMS detection schemes that are quite different. Peak detection engages the compressor by monitoring peak or instantaneous voltage signals. RMS engages by looking at the average energy in the signal and comparing it to the threshold setting. Very different modes of operation that provide great solutions for specific problems.

- High-Pass Filter – Allows you to filter out low frequencies and avoid pumping effects. This is particularly helpful when using the sidechain to more precisely control which frequencies are being compressed.

- Classic Controls – Threshold / Attack / Release / Ratio – Low ratios provide a nice starting place for master transparency, 4:1 provides more color and higher ratios for a tougher sound full of character. We like to use Attack and Release controls to respond to tempo and feel of a track.

- Blend – This control allows you to blend, or mix, the original uncompressed signal with the compressed signal providing another tool you can use to obtain your desired objective.

- VU Meter - Monitor Input, Outputs and Gain Reduction levels.


  • Stereo compressor with VCA-based signal detection
  • Super low noise, IC based input section
  • Side chain input allows a separate source to be used as the compression trigger
  • IC based, ultra-low noise output stage
  • VU meter for Input / Output Level and Gain Reduction monitoring
  • Super low noise internal power supply
  • Selectable high-pass filter
  • Threshold, Attack, Release and Ratio controls
  • Selectable detection type Peak or RMS
  • Selectable compression types: Soft or Hard Knee
  • Blend control allows you to mix the compressed audio signal with the original signal

Get your Chameleon Labs 7721 Stereo VCA Compressor today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Compressor


by PowerReviews
Number of Channels 2
Frequency Response 20Hz-20kHz
XLR Inputs 2
XLR Outputs 2
Analog Inputs Number 4
Analog Outputs Number 4
Gain Range -60dB to +20dB
Compressor Yes
Side Chain I/O Yes
Phantom Power No
Additional Controls/Features
  • On Switch
  • Detection
  • High-Pass Filter
  • Threshold
  • Attack
  • Release
  • Ratio
  • Blend
  • Computer Connectivity None
    Model 7721
    Information not available

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