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Item# 25335
MB Quart ONX4.80/500 - $279.00
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MB Quart ONX4.80/500

Item# 25335

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Condition:  Brand New

500W 5-Channel Class A/B Onyx Series Car Amplifier (ONX80.4+500)

Authorized Dealer
MSRP:$799.95
Regular Price:$399.00
Savings Of:$520.95 (65%)
Your Price $279.00

Free Shipping On This Item

5-Channel Performance:
  • 80W x 4 @ 4 Ohms
  • 160W x 2 @ 2 Ohms
  • 320W x 2 @ 4 Ohms
Plus Super D Mono Block Performance:
  • 250W x 1 @ 4 Ohms
  • 375W x 1 @ 2 Ohms
  • 500 x 1 @ 1 Ohm
General Features:
  • A/B Analog Class
  • 4/2 Ohm Stable
  • Multi-Channel 5/4/3/2 Channel Configurable
  • High Speed MOSFET Output Devices
  • Variable Low Pass&344; High Pass&344; Band Pass
  • RCA INputs and Ouputs
  • Built-In System Diagnostics
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.

Do you own this product?  Write a review

   Chris From Woodbridge

I put this in my 04 G35 Sedan in place of an Infinity Reference 5 channel amp.  The amp is definitely stronger pushing more watts and providing greater clarity in the mids and depth and punch to the bass.  It is highly adjustable.  I have a problem with it because one of the channels is going in and out.  I don't know if it is a bad amp which is really rare of some issue elsewhere in the system but I had it checked and am thinking it is the amp.  It is big and if I replace it I would get an Alpine pdxv9 or 5 which is digital and far smaller. 


   Brian From Pennsylvania

I absolutely LOVE this amp. After 23 years in the car audio world and owning serveral amps I have to say that if you want to build a system using 1 amp that is extermely well balanced this amp is a MUST have. It made installing simple and 1/0 power wire fits directly into the amps power and ground inputs. While it isn't going to give you ridiculous bass that's going to rattle the car behind yours license plate it's balanced perfectly. I have this paired with an Alpine IVA-D106 with the Imprint processor, an AudioControl 6XS and EPIC 160, MB Quart RLP304 Shallow Mount 12 inch subs, Alpine Type R 6 1/2's for rear fill and Alpine Type R 5 1/4's for front stage. I added an MB Quart Formula 2X60 with 2 sets of MB Quart PVI164's for front midbass in a custom fiberglass box installed in the bottom of my front doors since I wasn't happy with the lack of midbass by not using both front outputs on the 6XS. Sounds INCREDIBLE in my 92 Dodge Dakota RT. Everyone who hears it is completely blown away with the SQ and while it's not pounding out 150 db, it's actually reading 128 on the Epic 160, that is more than loud enough for me (your ears will ring for a couple hours after 20 minutes at max volume before clipping lol). For the price this amp sells for, it is a STEAL. If you are a basshead (Like I was back in the day), you can use a splitter to send one channel to the mono block portion of this amp and get a second 1X500 1ohm amp for the other channel and you'll have a 1000 watt stereo bass set up. So far all of the equipment I bought here at Onlinecarstereo.com has been fantastic, and customer support has been great. I highly recommend everything in my review and this company.