Step-By-Step Instructions - Opus Technologies OP-FSM Manuel D'installation

4. Step-by-step instructions

Use the CD with the reference signal that is enclosed with the device and perform the following steps
to perfectly adjust the loop to your needs.
To ensure exact measurements, always hold the OP-FSM perpendicular to the floor.
Measurement
Step 1 Basic setting
Background
Step 2
noise
Magnetic field
Step 3
strength
Frequency
Step 4
response
Magnetic field
Step 5
strength again
Reproduction
Step 6
quality
Manuel d'utilisation - User Manual
Measurement
Signal range and filter
required selection
switch
OP-
Amplifier
FSM
Off
off
Amplifier
-30dB
off
CD track 3 0dB
CD track 3 0dB
CD track 3 0dB
Current
0dB
signal e.g.
microphone
Comparison
point
OP-
FSM
None
off
Several points
A
inside the loop
Norm Loop power
Norm Treble
Adjust loop
Norm
power
Norm Line IN control
Reference
measurements
All controls
turned as far to
the left as
possible
Maximum <-30dB
Ideal <-43dB
0dB +/- 3dB at
1000Hz
Max. deviation
-3dB à +3dB
0dB +/- 3dB at
1000Hz
-3 to +3 dB in the
peaks
20