MB QUART PAB 1200.1 D - Manual (Page 4)

4
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