9
Setting the gain of a full range amplifier
1. This procedure should only be done AFTER you
have ensured the headunit puts out a clean
undistorted signal, AND you know where the
maximum undistorted volume setting is.
2. Turn the gain setting of the amplifier to minimum
3. Set crossover to full range / all pass/ bypass
4. 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).
5. Using included harness, connect DD-1 to output
of amplifier. Connect the red harness lead to
the Left Speaker (+) terminal, connect the black
to Left Speaker (-). (Note: Most multi-channel
amplifiers have the signal on Left (+) and Right
(-).
6. Play track 4 or 6 on test CD (Track 4 will ensure
maximum sound quality, Track 6 will result in a
louder system). Your choice.
7. Set the headunit’s bass, treble, EQ’s, crossovers
to flat
8. Set the headunit’s volume to the maximum
undistorted volume setting that was measured
with the DD-1 previously
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