Operational Checks, Normal Operation

OPERATIONAL CHECKS

Start with the radio off. Set the FADER and all seven EQ SLIDES to their center positions.

Switch to ignitionor accessoryon and turn on the radio but at low volume. The light in the PEQ-72 should now be lit. If nothing happens,check the black, red,or orange connections and the in-line fuses if necessary.

If all OK so far, then by raisingthe radio volume should produce speaker output. Next rotate the radio balance control to verify sound moves from full right to full left. If it is reversedthen the inputsto the PEQ-72are revers- ed. If you are using four speakers then rotatethe FADER control to verify the PEQ-72 outputs are going to cor- rect speakers.

SUBWOOFER OUTPUT: If you are using the subwoofer output, try the two different settings. Each positionallows a different rangeof bass frequency thru. Because deep bass stands out more we've providedasubwoofer gain control. This will allow you to adjust the amount of bass output needed to match the rest of your system.

Normal Operation:

The purposeof a MULTI-BANDequalizer is to compen- sate for the fact that no speaker is perfect and, more importantly,that even a perfect speaker will product im- perfect soundpressure levels versus frequency when placed in a real motor vehicle. It is possible to correct these problems by boosting or cutting the speaker in- put power at the proper frequencies. This is the basic purpose of the power acoustik PEQ-72.

The task of finding the best combination of EQ settngs to produce the desired resultequal sound-pressurelevels at your ears for equal recorded signal level at any frequency-dependsmainly on your ears. However, there are several starting points to guide you.