Rockville dB12, Owner'S Manual

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5
DC Offset Protection: Should any DC voltage try to enter the amplifier via the speaker terminals it will cause the amplifier to shut down and not operate until this condition is remedied.
This circuit will also protect damaging high DC voltages from reaching your speakers should your amplifier ever malfunction.
You must reset amplifier by turning it OFF and then ON again by the Remote power connection after correcting a diagnostic condition. (Turn your radio off and then on again.)
If the amplifier stays in protection after a reset, it is most likely faulty.
To reset the amplifier, you must first diagnose what caused the problem, correct the fault and restart the system.
MUTE CIRCUIT:
dB Series amplifiers feature an anti-thump, mute and delay circuit. This eliminates irritating speaker damaging turn-on and turn-off transients normally experienced with less expensive
amplifiers.
BATTERY VOLTAGE:
Rockville dB Series amplifiers are rated and regulated to 13.8 volts and below. Increasing voltage to 14.4 volts will increase the power output of the amplifier in the same proportion.
Maximum input voltage is 14.4 volts while the minimum voltage is 12 volts.
DO NOT EXCEED 14.4 INPUT VOLTAGE.
Features