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Bass Equalization Circuitry

A narrow “Q” peaking equalization circuit is included in the ampliers. 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 systems 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˝ Sub woofers or mid ranges and tweeters. It’s a sure way to blow your speakers.

Audio Output Section

The audio output sections of the Class D dB series ampliers feature rugged, fast switching MOSFETs.

Power And Protection Circuitry

dB Series ampliers 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 2 LED’s located on the side of the amplier provide indication of the amplier status, the Power LED will light

when the amplier is receiving proper power, ground and remote voltages and the IC monitoring sequence indicates the amp is functional. In case the amplier encounters a diagnostic

condition as listed below, the second LED will light indicating a Diagnostic condition. When a diagnostic condition is sensed the amplier will then turn into a self preservation mode and

if the cause of the diagnostic condition is not corrected will eventually shut down. There are certain critical diagnostic conditions which will turn the amplier off immediately.

Thermal Protection: When the amplier reaches an unsafe operating temperature of 80 degrees Celsius the amplier will turn off.

Once the amplier 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 which 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 amplier 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 amplier. You must reset the

amplier 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.)

Clipping or total shutdown may also be a result of a bad ground connection or loose ground. If you nd that your speakers and speaker wires are not shorted, please check

your ground and power connections.

Input Overload Protection: This circuit will either shutdown the amplier completely or make the amplier spurt on and off indicating that it is in a diagnostic condition. Turn the system

off and reduce the gain on the amplier or volume from your head unit, this should result in a corrected condition.

DC Offset Protection: Should any DC voltage try to enter the amplier via the speaker terminals it will cause the amplier 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 amplier ever malfunction.

You must reset amplier by turning it OFF and then ON again after correcting a diagnostic condition (turn your radio off and then on again). If the amplier stays in protection after a

reset, it is most likely faulty.

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