A well crafted stereo compressor with high-quality components.

The Chameleon Labs 7720 Stereo Compressor is based on a trusted design and is electronically balanced, utilizing "THAT Corporation" (formerly DBX) VCA circuitry. It features a low component count in order to provide the cleanest signal path possible. Chameleon Labs has incorporated unique features based on users' suggestions) to make the 7720 more versatile than your average mix bus compressor.

A switch allows the meter to indicate either channel's input level, either channel's output level, or the amount of stereo audio signal compression. It has a sidechain, which modifies the control of the compressor with a mono audio signal introduced through the sidechain XLR input. A blue LED gives you a visual indication that the circuit is active and that the sidechain audio is controlled by the compressor, not the left and right audio inputs. The High Pass Filter rotary control allows the sidechain or main audio signal to be equalized to minimize lower frequency audio signals' effect on the compression character of the unit. The HPF also affects the detection circuit, not the actual audio. The selector has six settings. The first setting does not introduce any filtration into the sidechain circuit. The next five settings are 60Hz, 90 Hz, 130Hz, 200Hz and 440 Hz. The high pass filter is designed so that the frequency selected is 3dB down, with a roll-off of 12dB per octave. In addition to the ratio settings common to popular stereo compressors (2:1, 4:1, 10:1), the 7720 feature a 1.5:1 setting. This allows you to maintain control over the dynamics of the input signal without squashing the life out of the mix.

Chameleon Labs 7720 Stereo Compressor Features:

• Meter switch: allows the meter to indicate either channels input level, either channels output level or the amount of stereo audio signal compression
• Sidechain: modifies the control of the compressor with a mono audio
• A blue LED: gives the user a visual indication that the circuit is active and that the sidechain audio is in control of the compressor
• The HPF (High Pass Filter) rotary control: allows the sidechain or main audio signal to be equalized to minimize lower frequency audio signals' effect on the compression character of the unit.
• A 1.5:1 Ratio setting
• AC Adapter included

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Chameleon Labs 7720 Stereo Compressor Specifications:

• Input impedance: 50K Ohms (Balanced)
• Output impedance: 200 Ohms (Balanced)
• Sensitivity: 20 dBu maximum at 1 KHz
• Noise: Less than -80 dBu
• Total Harmonic Distortion: <0.5% at 1 KHz, +4dBu
• Maximum Output Level: 20 dBu
• Frequency Response: 20 Hz 20 KHz +/- 0.5 dB.
• Net Weight: 6.6 lbs

Chameleon Labs 7720 Stereo Compressor