MB QUART RAB 1450: TECHNICAL DATA

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TECHNICAL DATA

RAB 250

RAB 450

RAB 1450

Features

2-CHANNEL

4-CHANNEL

MONO

Output power rating Watt RMS

(14.4V battery)

4-Ohms

50 x 2 50 x 4 200 x 1

2-Ohms

90 x 2 80 x 4 300 x 1

1-Ohm

– – 450 x 1

Mono bridge at 4-Ohms

180 x 1 160 x 2

–

Miscellaneous specifications

Slow unmute at turn on (soft start)

Yes Yes Yes

Frequency response, -3 dB

10Hz - 30kHz 10Hz - 30kHz 10Hz - 250Hz

Damping factor

>200 200 >250

Signal to moise ratio (A-weighted)

>95 dB >95 dB >95 dB

THD & N

0.05 % 0.03 % 0.10 %

Channel separation at 1 kHz

>70 dB >70 dB 70 dB

Variable input level control

0.2 V - 6.0 V 0.2 V - 6.0 V 0.2 V - 6.0 V

Input impedance

47 k

Ω 47 kΩ 47 kΩ

Power and diagnostic LED

Yes Yes Yes

Protection:

DC, short, thermal, overload

Yes Yes Yes

Power supply, all MOSFET PWM

Yes Yes Yes

Audio output, all Bipolar

Yes Yes Yes

Crossover and switching

Input selector switch

No Yes No

Channels 1/2

FULL/HP/LP HP/FULL/LP –

Variable high pass, 12 dB/octave

10 Hz - 4.8 kHz

50 Hz - 5.0 kHz –

Variable Mono low pass, 24 dB/octave

– – 35 Hz - 250 Hz

Bass boost at 45 Hz

– – 0 - 9 dB

Subsonic

– – 10 Hz - 50 Hz

Channels 3/4

– HP/FULL/LP –

Variable high pass, 12 db/octave

– 10 Hz - 1.0 kHz –

Variable Mono low pass, 24 dB/octave

– 50 Hz - 5.0 kHz –

Bass boost

– – –

Connector types

Unbalanced inputs (RCA)

Yes Yes Yes

Line output (RCA)

Selectable Selectable Selectable

Phone jack for remote control

No No Yes

Bass boost remote control Module MBQR-1

No No Yes

Mechanical

Molded power terminal

8-GA (10 mm²) 8-GA (10 mm²) 4-GA (25 mm²)

Molded speaker terminals

8-GA (10 mm²) 8-GA (10 mm²) 8-GA (10 mm²)

Note: All features and specifications subject to change without notice

Fuse type

ATC ATC ATC

Fuse Size

20 Amp 30 Amp 2 x 25 Amp