MB QUART PAB 2100: AMPLIFIER FEATURE DESCRIPTION

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AMPLIFIER FEATURE DESCRIPTION

- Each model is capable of 4 & 2 ohms stereo per channel, or 4 

ohms mono bridged operation.

- Tri-Mode operation with any stereo pair of amplifi er channels is 

possible, as with all bridgeable amplifi ers.

- The input sensitivities for rated output powers are variable from 

0.2 volt to 6 volt.

- All crossovers are fully variable in their respective ranges.

- Crossover fi lter slopes are 12 dB/octave for stereo fi lters, and 24 

dB/octave for mono fi lters.

- A POWER LED indicates the powered “up” and turned “on” condi-

tion.

MBQR-1

MBQR-1

PAB 4100 4-Channel Amplifi er

INPUT MODE slide switch:

- In the CH2 position, ALL four amplifi er inputs are selected from the 

CH1/CH2 RCA jacks. 

- In the 4CH position, channel pair 1&2 receive input signal from 

RCA jacks CH1 and CH2, and channel pair 3&4 receive input signal 

from RCA jacks CH3 and CH4. 

The AMPLIFIER CH 1/2CH X-OVER slide switch selects the input 

signal for channel pair 1&2:

- HP: Selects the built in HIGH PASS fi lter, variable from 10 Hz to 

150 Hz.

- FULL: Bypasses all crossovers for full frequency range operation.

- BP: Selects the built in LOW PASS fi lter, variable from 30 Hz to 

150 Hz.

Note that the LOW PASS signal is MONO.

- In the BP position, the HIGH PASS fi lter acts as a subsonic fi lter.

- When the BP mode is selected, a 0 to +9 dB, at 45 Hz, BASS EQ is 

also switched in.

Premium Multi-Channel Amplifiers

PAB 2100 2-Channel Amplifi er

The X-OVER slide switch selects the internal crossover functions:

- The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting simplifying daisy chaining of amplifi er.

- HP: Selects the built in HIGH PASS fi lter, variable from 10 Hz to 150 Hz.

- FULL: Bypasses all crossovers for full frequency range operation.

- LP: Selects the built in LOW PASS fi lter, variable from 30 Hz to 150 Hz.

Note that the LOW PASS signal is MONO.

- In the LP position, the HIGH PASS fi lter acts as a subsonic fi lter.

- When the LP mode is selected, a 0 to +9 dB, at 45 Hz, BASS EQ is also switched

The AMPLIFIER CH 3/CH 4 X-OVER slide switch selects the input 

signal for channel pair 3&4:

- Hi: Selects the built in HIGH PASS fi lter, variable from 10 Hz to 

150 Hz.

- FULL: Bypasses all crossovers for full frequency range operation.

- BP: Selects the built in LOW PASS fi lter, variable from 30 Hz to 

150 Hz.

Note that the LOW PASS signal is MONO.

- In the BP position, the HIGH PASS fi lter acts as a subsonic fi lter.

- When the BP mode is selected, a 0 to +9 dB, at 45 Hz, BASS EQ is 

also switched in.

- Full range signal from channels 1/2 inputs are routed to the Line 

OUT RCA jacks, regardless of the setting of the X-OVER switches.

- The REMOTE jack enables dash mount level control of the LOW 

PASS signal, CH3/4 only.

- All MB QUART Premium amplifi ers feature a comprehensive dia-

gnostic system, with speaker lead short circuit, and amplifi er DC 

faults indicated by the DIAGNOSTIC, or PROTECT LED.

CAUTION:

DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED IM-

PEDANCE. YOU WILL CAUSE DAMAGE TO THE AMPLIFIER THAT 

WILL NOT BE COVERED UNDER THE WARRANTY PRINTED IN THE 

BACK OF THE MANUAL.

Multi-Channel amps: 4 & 2 ohms stereo, 4 ohms mono bridged