MB QUART RAB 1450: AMPLIFIER FEATURE DESCRIPTION RAB 250 2-Channel Amplifier

4

AMPLIFIER FEATURE DESCRIPTION

RAB 250 2-Channel Amplifier

1

LED INDICATORS

6

LEVEL

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

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

applied.

of the radio/CD player.

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

2. Note: Check your radio/CD player manual for the correct line

level sensitivity and adjust the amplifier level control to match.

2

LOW PASS MODE

1. Selectable in STEREO mode or MONO mode.

7

OUTPUT

1. This output can drive the input of other amplifiers in a

3

AMPLIFIER MODE

system (daisy chain).

1. Selects the frequency range to be amplified and routed to

the loudspeakers.

8

INPUT

2. The FR (FULL RANGE) setting passes the full frequency range

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

from the INPUT to the internal amplifiers.

line level (RCA) source with a range of 0.6 volts to 6 volts.

3. HP (HIGHPASS) will send the range of frequencies above the

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

point set by the CROSSOVER FREQ SELECT controls.

(high level) outputs only.

4. LP (LOW-PASS) will route those frequencies below the

CROSSOVER FREQ SELECT controls to the internal amplifiers.

4

CROSSOVER RANGE

1. T he CROSSOVER RANGE selector configures the output of

the crossover for X1 or X10 frequency multiplier.

5

CROSSOVER FREQUENCY

1. The variable pot sets the crossover frequency point for both

high and low pass.

2. The CROSSOVER RANGE switch is a multiplier for the

variable control, for a total adjustment of 10 Hz to 480 Hz in

2 ranges.