MB QUART PAB 1200.1 D: Front/rear high pass, using a 2 channel amplifi er for mono sub bass

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MBQR-1

Front/rear high pass, using a 2 channel  amplifi er for mono sub bass

The combination of a 2 and a 4 channel amplifi er, utilizing their built 

in crossovers, makes it a snap to put together a full system with front 

and rear highs, with mono sub bass.

Interconnect cable checklist:

- Using good quality RCA cables, feed the front and rear outputs of a 

head unit to the inputs of the 4 channel amplifi er as shown. 

- Also connect the LINE OUT of the 4 channel amplifi er to the LINE 

INPUT of the 2 channel amplifi er as shown.

Mono bass woofer wiring:

Connect the mono speaker positive terminal to the LEFT +, and its 

negative terminal to RIGHT -.

Switch setting checklist:

4 channel highs amplifi er:  

2 channel bass amplifi er:

- 1/2CH X-OVER: HI 

- X-OVER switch: LP/BP

- 3/4CH X-OVER: HI

Crossover frequency control checklist:

4 channel highs amplifi er:

Channels 1/2: 

Channels 3/4:

- HI PASS: 100 Hz 

- HI PASS: 100 Hz

- LOW PASS: N/A 

- LOW PASS: N/A

2 channel bass amplifi er:

- HI PASS (Subsonic fi lter): 10 Hz to 40 Hz

- LOW PASS: 100 Hz

Please note that these frequency points are suggestions only. Refer to 

the loudspeaker manufacturer specifi cations and the section “Setting 

up systems after installation for best performance”

Level control checklist:

Refer to the section “Setting up systems after installation for best 

performance”

Minimum fi nal loudspeaker impedances:

- 2 ohm per channel in stereo mode

- 4 ohm mono bridged

AMPLIFIER APPLICATIONS PAB 4100 4-Channel Amplifi er