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MB Quart RA1500.1

1500W Class D 1-Channel Monoblock Reference Series Amplifier

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MB Quart RA1500.1

1500W Class D 1-Channel Monoblock Reference Series Amplifier

$149.99

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General Features:

  • Reference Series 1-Channel Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 500 watts x 1 chan.
    • 2 ohms: 1000 watts x 1 chan.
    • 1 ohm: 1500 watts x 1 chan.
  • FLUID-FETS MOSFET Circuit maximizing power efficiency while improving sound quality
  • 1 Ohm stable
  • LED power (green) and protect (red) indicators
  • Variable BassEQ Boost (0 to +10 dB bass boost fixed at 45 Hz)
  • Built-in system diagnostics
  • Mono channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty Black Onyx aluminum alloy heat-sink with illuminated MB Quart design
  • Variable high-pass filter (10-1,200) Hz
  • Variable low-pass filter (30-150 Hz)
  • Frequency response: 15-250 Hz
  • 4 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: 8-5/16"W x 15-3/4"D x 2-3/8"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
500 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
1000 watts x 1 channels
RMS Power @ 1 ohm
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 1 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
1500 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Reference (MB Quart)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

1500 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.10%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

30 - 250 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 35 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
95 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 10 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Yes
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
60A x 2 
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.
No
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

No
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
4.9
Features
5.0
Design
4.6
Usability
4.9
Kilbaine

Akron, OH

Overall
Durability
Value
Features
Design
Usability
Nice Amp!

September 19, 2014

Not the most powerful. But has accurate, clean, rich sound. And doesn't get hot running at 1 ohm. Good buy for sound quality. Not so much am spl amp.

28 of 34 found this helpful

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linton

United Kingdom

Overall
Durability
Value
Features
Design
Usability
Skar zvx12 v2

October 18, 2014

I'm using this with my skar audio zvx 12 at 1ohm and for the value its great. It's very clean and loud.

27 of 33 found this helpful

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Jonathan

Mesa, AZ

Overall
Durability
Value
Features
Design
Usability
Great amp

February 4, 2015

I have this amp powering 2 RE Audio SEX 15's in a sealed box wired down to one ohm. The amp doesn't get hot, even during the summers in Arizona. I set the gains, filters, and haven't really messed with it since. Most of the time, I have the volume set at a moderate level, but it does push those subs pretty good when you want it to. If you're all about about SPL and getting loud, there are better amps suited for your needs. If you want a reasonably priced amp that puts out clean power for a daily driver type setup, then I'd highly recommend this amp. My only complaint is that I had to trim some of the copper from my 0 gauge wires in order to fit it into the terminals. Other than that, great amp.

23 of 28 found this helpful

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Todd

denver, co

Overall
Durability
Value
Features
Design
Usability
great buy

September 23, 2013

Had this amp for a short while and couldn't be happier. very clean

15 of 19 found this helpful

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Jay

Boston, MA

Overall
Durability
Value
Features
Design
Usability
Great amp...packs a mean punch

May 3, 2015

Great amp. I have it pushing a 12" GTO sub and it never gets hot. More amp then I need. Quality amp and plenty of adjustments.

13 of 17 found this helpful

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chris

Murfreesboro, TN

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Great product/service

July 17, 2015

Originally I ordered and received the 1200.1 version which had to be returned. With product authorization, Sonic Electronics did me a huge solid by replacing the out-of-production model with the next model up, the 1500.1.

This amp is working great and I would recommend it to folks looking for good clean power in a small package.

Sonic electronics' fantastic service will keep me coming back.

5 of 6 found this helpful

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ToneDeaf audio

Northeast Ohio

Overall
Durability
Value
Features
Design
Usability
This Amp is a Monster

September 7, 2015

bought this beast for my soundqubed hds312 woofer ad its pushing around 1100 watts right now until i get another batter and let me tell you phenomenal amp

4 of 5 found this helpful

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Browse 4 questions and 18 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
After going through 5 amps or so from burning out, I decided to choose a different manufacturer, I was very pleased with this amp and its lasted way longer than my last one. Very good product, highly recommended.
Adam V on Sep 19, 2015
good price for the watts
lerrell b on Jul 17, 2015
I purchased this amp to compliment a pair of MBQuart 12" DVC subs (circa 2001) that i acquired. The cheapo Power Acoustik BAMF 2000.1 ($70 pawnshop special) I've been pushing them with just doesn't seem to do the job.
Aaron M on Aug 21, 2015
A customer services employee helped me pick out the best one.
Mark D on May 3, 2015
Would this run 2 kicker 2 ohm subwoofers at 300 watts rms each pretty well? They are both 12 inch
A shopper on Apr 13, 2015
Best Answer: I currently am set up with two Rockford 10" subs with 250rms a piece. I have them wired down to .5 ohms. I am satisfied with the sound and the amount of power the mb quart produces. Your not going to be winning competitions with this amp but it will defiantly point out everything that rattles in your car. I am considering buying another one of these and running dual amps. Very good product though
Reply · Report · Adam V on Apr 13, 2015
· Add Answer · I Have This Question Too (0)
I just bought a soundqubed 12 hds300 1200 watt dual 2 ohm sub and will be running it at 1 ohm and I have this amp, do I run it bridged or just 1 side since it will be a 1 ohm load ?
A shopper on Nov 11, 2015
Best Answer: I'm not positive, but I think this amp gives full power at 1 ohm. You should be fine with just using 1 port. I was power two rockford t1's rated at 550 rms 750 peak (I think). I was very pleased with the way the amp handled the subs. Be careful with running 1 ohm though, if it's not rated for it. My rockford were a 1 ohm aub, but when I ran only 1 sub, I ended up blowing it.
Reply · Report · Adam V on Nov 13, 2015
· Add Answer · I Have This Question Too (0)
Can I connect this amplifier to 2 kicker sub 11s12l74?
Vhonz on Dec 13, 2014
Best Answer: Yes, wire the kickers in parrelel and you should have a final impedeance of 1ohm, the amp should give 1500rms.
Reply (1) · Report · linton p on Dec 14, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

RA1500.1

UPC

806576221012

Weight

11.50lbs

Internal SKU

ra15001

Internal Product ID

67868

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: MB Quart RA1500.1