Tube Tech CL 2A Dual Opto Compressor User Manual
Page 6
LYDKRAFT ApS
Mose Allé 20, DK 2610 Rødovre
Denmark
6
ADJUSTMENT OF THE VU METER READING "COMPRESSION":
1)
Turn the THRESHOLD-control fully counter-clockwise.
2)
Switch the METER-selector to Compression.
3)
Set the RATIO-control at 1,5:1
4)
Apply a signal of 1 kHz, 0,0 dBU into the input of the compressor.
5)
Adjust the GAIN-control to an output-reading of 0,0 dBU.
6)
Adjust P 8 until the meter is reading 0 VU.
7)
Apply a DC-voltage of +250,0 mV into the sidechain jack socket and observe that the
output level has dropped to -10,0 dBU. If this is not the case, adjust the compression
tracking (see above)
8
Adjust P 7 (-10VU) until the meter is reading -10,0 VU.
9)
Remove the DC-voltage from the sidechain jack socket.
10)
Repeat step 6 - 9.
NB:
The VU-meter accuracy should be within +/- 1 dB when reading compression.
(981214)