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MB Quart RA400.2

400W Max 2-Channel Reference Series Class SQ Stereo/Bridgeable Power Amplifier (RA4002)

MB Quart
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• 100W x 2 Chan. @ 4 ohm
• 200W x 2 Chan. @ 2 ohm
• 400W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

Learn more about the ra4002

We apologize

This item has been discontinued


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Product Highlights


• 100W x 2 Chan. @ 4 ohm
• 200W x 2 Chan. @ 2 ohm
• 400W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

Description


MB Quart brand icon

Authorized dealer

General Features:

  • Reference Series 2-Channel Class SQ Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 100 watts x 2 chan.
    • 2 ohm: 200 watts x 2 chan.
    • Bridged, 4 ohm: 400 watts x 1 chan.
  • FLUID-FETS MOSFET Circuit maximizing power efficiency while improving sound quality
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost)
  • Built-in system diagnostics and top-mounted controls
  • 2/1 Channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Black reference aluminum alloy heat-sink with illuminated MB Quart design
  • Input sensitivity:
    • Level: 200mV-6V
  • Variable high-pass filter (60-1,200 Hz)
  • Variable low-pass filter (30-250 Hz)
  • Frequency response: 30-45,000 Hz
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Dimensions: 8-1/4"W x 11-3/16"D x 2-3/8"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
100 watts x 2 channel
RMS Power @ 2 ohms
200 watts x 2 channel
Bridged RMS Power
400 watts x 1 channel
Amplifier Specifications
Series
Reference Series
Amplifier Class
SQ
Number of Channels
2-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
60 - 1200 Hz
Low-Pass Crossover Frequency
30 - 250 Hz
Signal-to-Noise Ratio
92 dB
Channel Separation
80 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
20A x 2 
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

RA400.2

Weight:

6.50lbs

Internal SKU:

ra4002

Internal Product ID:

67875

Product and How-to Videos


Customer Ratings & Reviews


MB Quart RA400.2 thumbnail image

5 star
71%
4 star
14%
3 star
0%
2 star
0%
1 star
14%



Durability
4.5
Value
4.5
Features
4.3
Design
4.3
Usability
4.3

Customer Reviews

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Great Amp! Great Features! Great Price!

I have owned & purchaed several MB Quart amps from Sonic Electronix! I like MB Quarts quality, ease of use features & great price for the amount of power. I bridged this amp running mono to a 12" Kicker Solo-Baric L3 running 400 watts RMS & sounds great inside the ported 12" square MDF (Prod.#1SVK12) box. I would recommend this to anyone who wants to add some bass to their system.

By Steve on May 28, 2013

21 found this helpful


MB Quart RA400.2

This amp rocks in both style and function. I have it bridged on a RF R2D2-10 and it is KILLING it!! The built in sub sonic control is sweet and lets you dial in the punch you want. I would recommend this amp to anyone looking for style and performance.

By David on May 28, 2013

21 found this helpful


Overheats under light load

I would not recommend this amp. I've had a elemental designs amp for 7 years before it gave out. I bought this as a replacement. It paired up well for what I was going to use it for. I'm powering a 400w rms sub @ 4 ohms. I installed it in a well ventalated area and when I had a song with loud bass it overheated. I wasn't really even pushing it that hard. It does have a protect feature but it gets far too hot under load.

By Erik on January 24, 2014

21 found this helpful


Small amp good power great sound

I put this amp in my boat and it's pushing a 10" jl wov3. Great sound good output. I would like more bass but its more than I expected out of the sub

By Ryan on September 17, 2013

18 found this helpful


Great value for the quality amp

Rock solid bass out of my single MB QUART 12" sub. Very clean low bass. Highly recommend.

By Dan on May 17, 2015

9 found this helpful


Great product, fast delivery

Great product, sounds great. I would recommend this product to anyone.

By Chino on May 21, 2015

7 found this helpful


Great product

Great sound at affordable price and it makes my car my perfect sound machine

By Anonymous on June 21, 2019

3 found this helpful




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