TECHNICAL DATA

Features

RAB 250

RAB 450

RAB 1450

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 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 specifications subject to change without notice

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MB QUART RAB 1450 manual Thd & N
Page 54 Page 56

RAB 1450 specifications

The MB Quart RAB 1450 is a formidable addition to the realm of automotive audio systems, specifically designed for drivers who demand both high performance and clarity in their sound experience. Known for its robust construction and innovative technologies, this amplifier is an ideal choice for those looking to upgrade their vehicle's audio system.

One of the standout features of the RAB 1450 is its power output. With a peak power of 1450 watts, this amplifier ensures that every note, from the deepest bass to the highest treble, is delivered with exceptional clarity and intensity. It operates efficiently with a Class D design, which not only produces powerful sound but also keeps heat generation at manageable levels. This means that users can enjoy extended listening sessions without worrying about overheating or performance degradation.

The RAB 1450 is equipped with a variable low-pass crossover, allowing users to customize their audio experience by controlling which frequencies are sent to their subwoofers. This feature is particularly beneficial for those who like to fine-tune their sound to match their personal preferences or their vehicle's acoustic characteristics.

Another notable characteristic of the RAB 1450 is its built-in protection circuitry. This feature safeguards the amplifier against potential damage from overloads or short circuits, ensuring a long lifespan and reliable performance. Additionally, the amplifier has adjustable gain control that helps users optimize the output level for their specific audio setup, enhancing both sound quality and clarity.

The construction of the RAB 1450 is designed with durability in mind. Featuring a sleek and rugged chassis, it withstands the rigors of automotive environments. The amplifier also utilizes high-quality components that enhance sound quality and reliability.

Installation is made easy with user-friendly connections and a compact size that fits in most vehicles without hassle. The MB Quart RAB 1450 is not just an amplifier; it represents a commitment to quality and performance, making it an exceptional choice for any audiophile seeking to elevate their mobile sound system.

In conclusion, the MB Quart RAB 1450 stands out in the crowded marketplace of car audio amplifiers with its powerful output, advanced features, and dependable construction. It is a prime choice for those who desire an immersive and customizable listening experience while on the road.
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