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Summary of Contents for Chameleon Labs 7802
- Page 1 Chameleon Labs Model 7802 Stereo OPTO TUBE Compressor Owner’s Manual 704 228 Avenue NE, #826 Sammamish, WA 98074 206-264-7602 www.chameleonlabs.com Revision A, July, 2008...
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Page 2: General Description
2:1 and 4:1, and five different attack/release envelope settings. The 7802 also makes a very good tube line amp when used with little or no compression. The tube circuit is designed to produce primarily even-order harmonic distortion that is very musically “friendly”... - Page 3 Drive control to adjust the amount of tube overdrive • Output control to set the overall output level • LED metering of input and clip levels • VU metering of compression • XLR balanced inputs • XLR transformer balanced outputs •...
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Page 4: Front Panel Controls
Front Panel Controls: The front panel controls are COMPRESSION, ATK/RLS, DRIVE, OUTPUT controls as well as RATIO, HPF, BYPASS, LINK and POWER switches. General Note: When a toggle switch is positioned toward the label, it is enabling that function. The COMPRESSION control sets the compressor threshold. Turning the knob clockwise increases compression. - Page 5 The LINK switch allows the two channels to be linked for stereo operation. During link operation both control circuits feed both channels allowing the unit to operate as a stereo device and neither channel acts as a master controller. Care should be taken to set identical configurations for both channels to ensure balanced stereo operation.
- Page 6 To correct this problem, disconnect the ground wire (pin 1) from the XLR cable plugged into the 7802’s output. This interrupts the ground path and breaks the ground loop, which is causing the hum.
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Page 7: Ac Power Connection
AC Power Connection The 7802 has an internal power supply and a 115VAC/230VAC switch which will allow the unit to operate from 100VAC to 230VAC, 50 to 60Hz. - Page 8 3- The Ratio switch selects the "amount" of compression applied to the input signal once that signal reaches the threshold. The 7802 can compress at a ratio of both 2 to 1 and 4 to 1. Use this control to have your program levels either track at that rate of 1 dB for every 2dB of change or 1dB for every 4dB of audio change.
- Page 9 The LED will be off to inform you that the 7802 is working on your signal. The Bypass switch is useful to A/B the results of your compressor as well as to achieve unity gain.
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Page 10: Specifications
Specifications Input impedance: 10k ohms unbalanced Output impedance: 600 ohms balanced Maximum output: +20dBu (0dBu = 0.775v) Gain: 39 dB Frequency Response: +/- 1 dB from 20Hz to 20 KHz THD: Not more than 0.6% from 20Hz to 20 KHz output into 600 Ohms Equivalent Input Noise (EIN):-98 dBu Sidechain Highpass: 90 Hz (-3dB, 6dB per Octave) -
Page 11: Warranty And Liability
Warranty and Liability Your Chameleon Labs product is warranted to the original owner for a period of one year. Chameleon Labs guarantees this product to be free from electrical and mechanical defects and will repair or replace defective components, or replace the unit at Chameleon Lab's option.
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