System Adjustments.24 - Orion COBALT Series Installation Manual

SYSTEM ADJUSTMENTS
Important: You will get less system noise if you keep the amplifier gain as low as possible. This can
be accomplished best with a pre-amp, such as the 300 PHD.
If there are no accessories (equalizers, crossovers, etc.) used in the system:
1. Turn off all power,
2. Set the Gain controls on all amplifiers to their minimum position.
3. Turn on the power to the ampiifiers. Turn on the radio and set the Volume control to approximately 3/4 volume.
4. Adjust the Gain control on each amplifier until tfistortion is heard, then back the gain down a touch until no distortion is
perceived.
If Orion Accessories Are Being Used:
If you are adjusting a system containing Orion accessories refer to the adjustment procedures con¬
tained in each applicable Orion accessory manual.
In general, make the adjustments as follows:
1. Turn all power off.
2. Set the gain controls on all amplifiers to their minimum positions
4. Set all frequency controls on the 300 PHD Equalizers to flat response (dots in top center position).
5. Turn gain controls all the way dctwn on the pre-amp.
6. Turn rai power to amplifiers. Turn on the radio and set the Volume control for approximately 3/4 volume.
If the input gain controls on the 300 PHD does not produce full volume, increase the gain setting
of each amplifier as required. Decrease the setting of the Volume control on the 300 PHD to desired
listening level.
CAUTION: BE SURE TO TURN OFF THE POWER WHEN DISCONNECTING AND RECONNECTING CABLES.
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