11
5. If you have a “bass boost” switch set it to where
you think it will be set when used.
6. If you have a bass boost knob or level control
knob, set them to the middle of their range. This
will allow a slight adustment up or down to
preference after the gain is set.
7. Disconnect all speakers connected to the
amplifier. (This has already been calculated into
the equation and provides 1- 3dB more gain
overlap on unregulated power supply amplifiers
and 0dB more gain overlap on regulated power
supply amplifiers).
8. Using included harness, connect DD-1 to output
of amplifier. Connect the red harness lead to
the Speaker (+) terminal, connect the black to
Speaker (-) terminal. (Note: if amplifier is bridged
or strapped to another amplifier the procedure
remains the same. If amplifiers are “linked” then
you just need to set the gain on the Master)
9. Play track 3,5 or 7 on test CD (Track 3 will
ensure maximum sound quality, Track 7 will
result in a louder system, Track 5 is a
compromise). Your choice.
10. Set the headunit’s bass, treble, EQ’s, crossovers
to flat
11. Set the headunit’s volume to the maximum
undistorted volume setting that was measured
with the DD-1 previously.
12. The Signal detected LED and the 40Hz LED
should illuminate.
13. Slowly turn up the amplifier’s gain setting until
the Distortion detected LED illuminates
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