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MB Quart ONX4.80

4-Channel ONYX Series Car Amplifier (ONX-4.80)

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ONYX Series 4-Channel Class A/B Car Amplifier • 160W x 4 Chan @ 2 Ohm • 80W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

Learn more about the onx480

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This item has been discontinued

Product Highlights


ONYX Series 4-Channel Class A/B Car Amplifier • 160W x 4 Chan @ 2 Ohm • 80W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

Description


MB Quart brand icon

Authorized dealer

Success is a Measurement of Quality and Power

The success of any car audio amplifier depends on system quality and construction, ease of installation and configuration, and sound enhancing features. MB Quart engineers built the all new Onyx series amplifiers from the ground up to be an affordable amplifier with the audiophile and performance enthusiast in mind. This series is composed of value-packed class A/B amplifiers that boast affordability without sacrifice to power or quality. All Onyx Amplifiers come clothed in a beautiful new age piano black finish which accents interiors and brings a whole new level of sophistication to swallow. To match, the line of Onyx Speakers shows off the same piano black finish applied to their polypropylene cone woofers. It’s a perfect match every time.

Speaking of features, Onyx amplifiers bring the full tuning spectrum to your fingertips with variable high-pass, low-pass and subsonic filters built-in. To increase endurance, MB Quart designed Onyx amplifiers with military grade printed circuit boards and built-in system diagnostics that keep these amps running strong. High speed MOSFET output devices are used in the power supply to give you the best watts-per-dollar ratio. It’s not hard to see how success has been written all over these amplifiers, though with a piano finish that looks that good, we know you will be staring.

  • ONYX Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 160 watts x 4 chan.
    • Bridged, 4 ohms: 320 watts x 2 chan.
  • CEA-2006 compliant amplifier
  • PWM (Pulse Width Modulated) MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 45 Hz
  • 4/3/2 channel operation
  • Unbalanced RCA input jack
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (DC, thermal, overload, and speaker short protection)
  • Piano black gloss finish with illuminated logo
  • Heavy duty aluminum alloy convection heatsink for superb heat dissipation
  • Silver-plated RCA level inputs
  • Silver-plated screw terminals
  • Input sensitivity:
    • Low level: 200mV-6V
  • Variable high-pass filter (60-13,000 Hz, 24 dB/octave)
  • Variable low-pass filter (30-250 Hz, 24 dB/octave)
  • Damping factor: >180
  • Frequency response: 10-45,000 Hz
  • Dimensions: 14-7/8"L x 9"W x 2-1/2"H
  • 4-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.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
80 watts x 4 channel
RMS Power @ 2 ohms
160 watts x 4 channel
Bridged RMS Power
320 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
640 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
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)
Full (AP)
High-Pass Crossover Frequency
60 - 13,000 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
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

ONX4.80

Weight:

12.00lbs

Internal SKU:

onx480

Internal Product ID:

24110

Product and How-to Videos


Customer Ratings & Reviews



5 star
75%
4 star
11%
3 star
7%
2 star
4%
1 star
4%



Durability
4.4
Value
4.8
Features
4.6
Design
4.5
Usability
4.6

Customer Reviews

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Awesome Amp At An Awesome Price

I love this amp, I have to say this amp came pretty highly recommended to me for my price range and I am glad I got it. The sound quality and power of this amp is great, makes my cheap walmart speakers sound good, which I had no idea they could.

Looks great, easy to use, sounds great, cheap, doesn't get much better than that!

By Lars on March 18, 2013

17

found this helpful.

fuse mb quart onx 4.80

the official website of mb quart says that this amp has two 30 amp fuses and two 25 amp specifications as stated on this page are wrong

By zica on December 31, 2012

17

found this helpful.

Great amp

Excellent amp at a great price. I am running two sets of components with it.

By Big tank on December 26, 2012

16

found this helpful.

great buy

had this amp a while running all my door speakers.This is a great amp and a great price.set the gains corrett and it shines.A++++

By bigsweat on October 16, 2012

16

found this helpful.

Amazing Amp.

bought to keep up with my 2 15' obsidian audio subs on 2200 watts. i have them on 2 crescendo 6.5 mid range and 2 cadence tweets. if you set your gains and x overs correctly, this amp sounds amazing. would buy again in a heartbeat. and DOES NOT GET HOT IF YOU SET GAINS RIGHT. people just crank the gain all the way most of the time and you cannot do that. youre creating excess power and distortion causing excessive heat. buy this beatiful amp guys

By Christian on February 7, 2013

14

found this helpful.

Great Value.

Amp puts out good power for price. I like the MB Quart amps for highs but the mono MB amps don't put out close to rated rms power.

By Jimmy on December 2, 2013

14

found this helpful.

MB Quart ONX 4.80

I have two of these pushing 3 sets of Polk Audio MM6501's.....these amps are great with awesome sound quality.....lots of power!! I give 5 stars cause the price is great, the look and design is sharp out of the box.....I have had them over a year the rest is user friendly.

By Danny on July 11, 2012

14

found this helpful.

Great amp and great value

I recently was introduced to car audio and it has quickly grown into a hobby as mine. I started by purchasing a pair of Kicker DS68 for my rear deck and bought a JVC head unit as well. I quickly realized deck power was not ample for speakers so I started looking into amps. A friend of mine works at B**t Buy and is heavy into the car audio scene. He recommended MB Quart for amps. I looked into them and was taken aback by how cheap they sell. I can't possibly get a quality product for this price, can I? Well, I was way wrong. This thing POUNDS. I still have stock speakers on the front and will be very surprised if the sound quality doesn't jump up by 1/2 when I have them installed. I have no sound issues and it is quite easy on the eyes too. The glossy black on matte on gloss is very nice too and the light adds a dash of "bad*ss" to the amp. It doesn't overheat and it sits under my seat. You would have to pay quite a bit more to get anything near this quality. I only put 4 stars for ease of use because I am still learning how the toggles work, it is not a knock on the product.

By PSH on February 29, 2012

14

found this helpful.

Great Amp!

I studied on this amp for a long time before I ordered it. I read the different reviews comparing MB Quart to Old School Phoenix Gold and US Amps. I was like...I don't know. I went to the MB Quart web site and all of their amps ARE CEA 2006 compliant and I likeed the looks of the ONYX sreiers the best and decided to give it a shot. Let me just say that if you are worried about buying this amp...don't be! I have it in my van 160x2 (2-ohm stereo) on my highs and 320x1 (4-ohm bridged) to a pair of 12" subs and I am glad I went with these amps. They sound amazing!!! Both quality and strength. I would say that this amp would compare to a pair of Phoenix Gold M-50s...for those of you who know old school and are looking for an amp to make your system scream loud and clear like it used to - this is the one!

By baceman on September 22, 2011

14

found this helpful.

Good amp for the buck.

Great and louder with an EQ hooked up to it. You'd pretty much get a great, clear sound with a Alpine high-end head unit. They complement each other like night and day.

By redeyz V.F.A.C. on August 4, 2011

14

found this helpful.

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