Tube Tech MMC 1A MIC Preamp and DI and multiband compressor - Manual (Page 5)

Lydkraft ApS
Mose Allé 20, DK2610 Rødovre
Denmark
5
ADJUSTMENT OF COMPRESSION:
LOW BAND:
1) Turn all the THRESHOLD-controls fully counter-clockwise.
2) Turn the LOW BAND GAIN-control fully clockwise.
3) Turn the MID BAND and HIGH BAND GAIN-control fully counter-clockwise.
4) Set the X-OVER LOW at 300.
5) Set the X-OVER LOW multiplier at x4.
6) Apply a signal of 100 Hz, (approx. -20 dBU) to the input and adjust the input level
for an output reading of 0,0dBU.
7) Move the jumper on the low band side chai n PCB t o “ ADJUST” and obser ve t hat
the output level has dropped to -10,0 dBU.
8) If this is not the case, adjust the gain reduction with P1, to obtain a drop of -10,0 dB.
9) Adjust the low band display with P2 so the green -10 LED turns on and the
green -7 LED just turns off.
MID BAND:
1) Turn all the THRESHOLD-controls fully counter-clockwise.
2) Turn the MID BAND GAIN-control fully clockwise.
3) Turn the LOW BAND and HIGH BAND GAIN-control fully counter-clockwise.
4) Set the X-OVER LOW at 60.
5) Set the X-OVER LOW multiplier at x1.
6) Set the X-OVER HIGH at 6k.
7) Apply a signal of 1KHz, (approx. -20 dBU) to the input and adjust the input level
for an output reading of 0,0dBU.
8) Move the jumper on the low band side chain PCB
t o “ ADJUST” and obser ve t hat
the output level has dropped to -10,0 dBU.
9) If this is not the case, adjust the gain reduction with P31, to obtain a drop of -10,0 dB.
10) Adjust the mid band display with P32 so the green -10 LED turns on and the
green -7 LED just turns off.
(050611)