MB QUART Reference Amps: AMPLIFIER FEATURE DESCRIPTION

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AMPLIFIER FEATURE DESCRIPTION

1

6

7

9

5

3

4

2

8

MBQR-1

0dB

9dB

RAB 1450 Mono Amplifier

1  LED INDICATORS

1. POWER: Lights up when power and remote turn-on is 

applied.

2. DIAGNOSTICS: When lit, will indicate a fault condition.

2  BASS REMOTE

When the MBQR-1 Bass Remote is plugged in, you can vary  

the bass boost from 0 dB to 9 dB via the under dash bass 

remote module.

3  PHASE SHIFT

Selectable PHASE of 0 degrees or 180 degree.

4  LOW PASS FILTER

1. The variable LPF(LOW PASS FILTER) can be adjusted from  

35 Hz to 250 Hz.

2. Frequencies below the chosen setting will be repr oduced.

5  SUBSONIC

1. The variable SUBSONIC filter can be adjusted from  

10 Hz to 50 Hz.

2. Frequencies above the chosen setting will be repr oduced.

6  BASS EQ

1. The variable BASS EQ is a variable boost from 0 dB to 9 dB 

at fixed 45 Hz.

7  LEVEL

1. Sets the amplifier input sensitivity to match the output level 

of the radio/CD player.

2. Note: Check your radio/CD player manual for the cor rect 

line level sensitivity and adjust the amplifier level control to 

match.

8  OUTPUT

1. T his output can drive the input of other amplifier s in a 

system (daisy chain).

9  INPUT

1. LEFT and RIGHT inputs to the amplifier, from the radio/CD 

line level (RCA) source with a range of 0.2 volts to 6 volts.

2. Use a line converter if the radio/CD player has speaker  

(high level) outputs only.