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12
Features
Bass Equalization Circuitry
A narrow “Q” peaking equalization circuit is included in the ampliers. The equalization system is preset at 45Hz. The equalizer control allows you to add up to 12dB of bass boost.
Utilize the bass equalizer to tailor your bass response to your system’s needs. Make sure your speakers can handle the extra power output! It would be foolish to add 12dB of gain to low
excursion 8˝ and 10˝ subwoofers or mid ranges and tweeters. It’s a sure way to blow your speakers.
Audio Output Section
The audio output sections of the dB Series mono block amps feature rugged, fast-switching MOSFETs.
Power and Protection Circuitry
These ampliers feature our unique IC-controlled protection circuitry. This sophisticated circuit constantly monitors the heat sink internal temperature and various voltages, adjusting the
amp automatically and protecting it from dangerous conditions. The two LEDs located on the side of the amplier provide indication of the amplier status. The POWER LED will light
when the amplier is receiving proper power, ground, and remote voltages, and the IC-monitoring sequence indicates the amp is functional. In case the amplier encounters a diagnostic
condition as listed below, the PROTECT LED will light indicating a diagnostic condition. When a diagnostic condition is sensed, the amplier will then turn into self-preservation mode and
if the cause of the diagnostic condition is not corrected will eventually shut down. There are certain critical diagnostic conditions that will turn the amplier off immediately.
Thermal Protection: When the amplier reaches an unsafe operating temperature of 80 degrees Celsius, the amplier will turn off. Once the amplier cools down to a safe temperature,
it will automatically turn on again. If you live in a hot climate, we suggest installing additional cooling fans in your trunk to exhaust the hot air that can build up in the trunk. This will help
keep the ambient temperature in the trunk as low as possible so that your amps work awlessly and without any musical interruption.
Speaker Short Circuit Protection: Should your speakers short circuit due to voice coil burn out, or should the amplier sense an impedance too low to handle, the protection LED will
light, indicating a diagnostic condition. Turn off your system, disconnect one speaker at a time, and try to determine which speaker might be faulty. Correct the condition and restart the
amplier. You must reset the amplier 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.)
Input Overload Protection: This circuit will either shut down the amplier completely or make the amplier spurt on and off indicating that it is in a diagnostic condition. Turn the system
off and reduce the gain on the amplier or volume from your head unit. This should result in a corrected condition.
DC Offset Protection: Should any DC voltage try to enter the amplier via the speaker terminals it will cause the amplier 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 amplier ever malfunction.
PLEASE NOTE: You must reset the amplier by turning it OFF and then ON again after correcting a diagnostic condition (turn your radio off and then on again). If the amplier stays in
protection after a reset, it is most likely faulty.
Mute Circuit
This is an anti-thump, mute and delay circuit that eliminates irritating, speaker-damaging turn-on and turn-off transients normally experienced with less expensive ampliers.
Bass Remote
The dash-mounted bass remote allows you to control the amplier’s bass level from the comfort of the driver’s seat. It features a power LED which indicates the unit is receiving power
and operating nominally.
Battery Voltage
Rockville dB Series ampliers are rated and regulated to 13.8 volts and below. Increasing voltage to 14.4 volts will increase the power output of the amplier in the same proportion.
Maximum input voltage is 14.4 volts while the minimum voltage is 12 volts.
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