Crate Amplifiers TX50DE manual ABOUT THE POWER SUPPLY continued, C R A T E, Positive Negative

C R A T E

ABOUT THE POWER SUPPLY (continued):

The TX50DE may also be powered by using a 12-volt vehicle cigarette lighter adapter, available at most electronic supply stores. Make certain that the polarity on the adapter matches what is shown below.

POSITIVE NEGATIVE

Connect the small round end of the adapter to the 12VDC Automobile adapter jack (#26, page 8), then connect the other end of the adapter into the vehicle’s cigarette lighter socket. (In some vehicles, the ignition switch must be in the “on” or “accessory” position to have power at the socket.) NEVER PLUG THE SUPPLIED 15VDC CHARGER INTO THE AMPLIFIER’S 12VDC LIGHTER PLUG!

When using the DC cigarette lighter adapter, the vehicle’s battery will keep the amp charged to its own voltage level – if the battery has a 13.5-volt charge, the amp will charge up to 13.5 volts; if the battery is low and only has a 10-volt charge, the amp will discharge down to 10 volts.

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