Crate TAXI TX-30E Driver Manual page 5

C R A T E T A X I • T X - 3 0 E
ABOUT THE POWER SUPPLY (continued):
The TX-30E 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 Cigarette
Lighter Adapter jack (#16, page 7), 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.) To avoid damaging the amplifier, do not connect
the supplied 15VAC charger to the amplifier's 12VDC Cigarette Lighter
Adapter jack.
When using the 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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