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TECHNICAL DATA
Features
RAB 250
2-CHANNEL
RAB 450
4-CHANNEL
RAB 1450
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)
Fuse type
ATC ATC ATC
Fuse Size
20 Amp 30 Amp 2 x 25 Amp
Note: All features and specifications subject to change without notice