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MB Quart RAB 450

320W RMS, Class A/B 4-Channel Reference Series Amplifier (RAB450)

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Reference Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 80W x 4 chan. @ 2 ohm • 160W x 2 chan. @ 4 ohm • Preamp RCA outputs • Massive aluminum heatsink

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Product Highlights


Reference Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 80W x 4 chan. @ 2 ohm • 160W x 2 chan. @ 4 ohm • Preamp RCA outputs • Massive aluminum heatsink

Description


MB Quart brand icon

Authorized dealer

  • Reference Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 50 watts x 4 chan.
    • 2 ohm: 80 watts x 4 chan.
    • Bridged, 4 ohm: 160 watts x 2 chan.
  • PWM (Pulse Width Modulated) MOSFET power supply
  • LED power and diagnostic indicators
  • Preamp RCA outputs
  • DC, short, thermal, and overload protection circuitry
  • Massive aluminum heatsink
  • Variable high-pass filter:
    • Channels 1-2: 50-5000 Hz, 12 dB/octave
    • Channels 3-4: 10-1000 Hz, 12 dB/octave
  • Variable low-pass filter:
    • Channels 3-4: 50-5000 Hz, 24 dB/octave
  • Frequency response: 10-30000 Hz
  • Dimensions: 8-3/8"L x 15"W x 2"H
  • 8-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
80 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
160 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
320 watts
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.03%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
  • Channels 1-2: 50-5000 Hz, 12 dB/octave
  • Channels 3-4: 10-1000 Hz, 12 dB/octave
Low-Pass Crossover Frequency
  • Channels 3-4: 50-5000 Hz, 24 dB/octave
Signal-to-Noise Ratio
95 dB
Channel Separation
70 dB
Remote bass/level controller
No
Fuse Rating
30A x 1 

Item Details


Manufacturer:

Model Number:

RAB-450

Weight:

8.25lbs

Internal SKU:

rab450

Internal Product ID:

13247

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.