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INTERNAL ADJUSTMENTS
INPUT GAIN ADJUSTMENT
The EQ-6S has internal INPUT GAIN adjustment trimmers for both left and right channels and is
calibrated before shipment. If further adjustment is required, unity gain calibration can be
performed as follows:
1.
Ensure the equipment is powered OFF and the IEC power cable is unplugged, but the XLR
input and output cables are connected.
2.
Viewing from the top of the enclosure, unscrew the two (2) Philips head screws that are
located toward the rear of the case and carefully pry the lid upward; a suction cup is
handy for this task.
3.
Carefully plug the IEC power cable and push both
POWER
button to be illuminated.
4.
Feed a -12 dB, 1kHz sine wave tone using a signal generator from your DAW into each
channel and take a note of the signal on each channel of your DAW software where the
generator is feeding the EQ-6S channels (e.g. -10.5 dBFS).
5.
Now push the
IN
button to be illuminated and take a note of the DAW master output
signal, reset this signal by clicking the indicated dB signal of the channel (e.g. -11.2
dBFS).
6.
Adjust the trimmer for each channel separately and ensure that the master output
measures the same as the the measurement taken in step 4 (e.g. -10.5 dBFS).
7.
Once both channels have the same signal measure when both
IN
and bypassed,
calibration is complete.
8.
Carefully POWER OFF the unit and re-assemble the lid by sliding the lid firstly toward the
front of the unit at an angle, then dropping the rear of the lid into the enclosure. Screw
the two (2) Philips head screws back into the enclosure.
