MB QUART RAB 1450 - Manual (Page 55)

55
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 kΩ 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 specifi
cations subject to change without notice