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MB Quart PWM304

500W 12" Premium Series Dual 4 Ohm Subwoofer

MB Quart
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• 1000W Peak
• 500W RMS
• Carbon Fiber Cone and Dustcap
• UV Resistant Butyl Rubber Surround
• Quick Change Impedance Terminal
• Heat-Dispersing Vented Pole Piece

Learn more about the pwm304

We apologize

This item has been discontinued

Product Highlights


• 1000W Peak
• 500W RMS
• Carbon Fiber Cone and Dustcap
• UV Resistant Butyl Rubber Surround
• Quick Change Impedance Terminal
• Heat-Dispersing Vented Pole Piece

Description


MB Quart brand icon

Authorized dealer

General Features:

  • 12" Dual 4 Ohm Premium Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 500 watts
  • Impedance: 4 ohms
  • Carbon fiber cone and dustcap
  • UV Resistant butyl rubber surround
  • Red nomex spider
  • Quick change impedance terminal
  • 2-1/2" High temperature voice coil
  • Anti-resonant magnet cover with deep drawn stamp steel basket
  • Heat-dispersing vented pole plate
  • Resonance Frequency (Fs): 27 Hz
  • Top-mount depth: 6-11/16"
  • Sensitivity: 84dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart PWM304 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart PWM304 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MB Quart PWM304 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart PWM304 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Premium Series
Subwoofer Size
12"
Peak Power Handling
1000 watts
RMS Power Handling
500 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohms
Voice Coil Diameter
2-1/2"
Sensitivity
84 dB
Xmax (millimeters)
14.5 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Carbon Fiber
Woofer Surround
Butyl Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.25 cubic feet
Minimum Ported Box Volume
1.5 cubic feet
Optimum Ported Box Volume
2.5 cubic feet
Top-Mount Depth (Mounting Depth)
6-11/16"
Cutout Diameter
10-7/8"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
27.25 Hz
Equivalent Compliance (Vas)
59.911 liters
Total Speaker Q Value (Qts)
0.606
Electrical Q Value (Qes)
0.746
Electrical Resistance of Voice Coil (Re)
7.2 ohms
Mechanical Q Value (Qms)
3.252
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

PWM304

Weight:

18.50lbs

Internal SKU:

pwm304

Internal Product ID:

67894

Product and How-to Videos


Customer Ratings & Reviews



5 star
80%
4 star
20%
3 star
0%
2 star
0%
1 star
0%



Durability
4.8
Value
3.8
Features
5
Design
4.8
Usability
5

Customer Reviews

Sort by:

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Rich Deep Bass

So i pulled the trigger. Seems like I'm the first one too! There is a huge lack of reviews for this subwoofer. I've searched the internet high and low and never found but maybe 1 so let me get started!

The speaker itself: MB Quart put the time and effort into designing and building this subwoofer. It is very well made with nice spring loaded hideaway terminals, a beefy rubber surround, woven fiber cone, heavy magnet, and very lightweight but STRONG basket. It is certainly unmistakable for their "premium" line of speakers. I really like the selectable impedance feature which is also fused to protect the voice coils. In theory you shouldn't ever be able to run too much wattage through them and cause the coils to blow. I'm powering it with a Rockford Fosgate R500X1D which i bought from Sonic. A perfect match to the subwoofer producing 500 watts at 2 ohms.

Onto the sound: I have it in a sealed 1.25 cubic ft Ground Shaker box (also bought here) and it sounds tight and clean! For the record I'm a 10" sub type of guy and would never use anything other than a sealed enclosure for accuracy. Jazz, classical, swing, and very musical compositions in general sound fantastic. I'm very impressed with the reproduction of bass drums kicking and string basses playing. I thought it would be boomy or muddy (because I'm the 10" subwoofer guy) but it wasn't! Now because I want to be fair and right a review for everybody, i had to play some hip hop and trap music for all the bass heads. Here's the deal on that.... I think we all can agree 84 decibels of sensitivity is on the low side. That said at 500 watts RMS, the bass comes through loud and clear, but if you want it to shake your mirrors off, you're better off with 2 and probably in a ported box. MB Quart even states in their description on their site that this subwoofer is intended to be musical and not for the SPL crowd of people and I agree! I'm a big band swing/ jazz listener so it suits my needs and adds the perfect amount of clean accurate bass to my setup. Overall I think it's worth checking out for sure. I know there are a lot of subwoofers out there under $100 that are amazing and I know that's why there are next to no reviews for this item. That and the Maxxsonics ownership which I get it...they are lower end, but you inevitably get what you pay for and a higher priced MB Quart subwoofer comes with a higher quality build. I love Sonic Electronix and definitely a customer for life with them, but if they want this sub to sell, they need to come down on price to match their competitors which is why I gave it 3 stars on value. Other than that, I'm happy!

By joseph on March 20, 2014

30

found this helpful.

good but.....a little high

im piggy back off the first review i woulndt pay 200 bucks for a 10 inch sub
when i could get most 15 inch subs for a little more money but like the first reviewer said if thats your thing pay the 200 but im a 15inch guy i woundt use any thing other than that siz driver its a great quality sub dont get me wrong just kinda steep in price....and sonic is absolutly the only place i order from iv done business withh them on 3 occasions and each time it was flawless .......

By d.j.keys on June 10, 2014

21

found this helpful.

TRANSIENT HEAVEN!!!!

if u spend ten times more you can get better but there no point in spending that this is Taylor made for all music and can satisfy sq,spl,splq. Subs I've owned that it is better than are as follows, sundown sa Polk mm Polk dxi power acoustic mofo jbl gto pioneer champ pro kicker cvr that's all I can remember but there's more. Seriously take a risk and trust me it will make u happy I promise. Again don't let people in forums tell u it's garbage maxxsonics I'm telling you this one is dark horse!!!! Enjoy and get ready to waste gas driving :)

By Melissa on August 8, 2015

9

found this helpful.

Extremely clean accuracy

Clean and accurate on top of its fbeautiful to look at. Sounds good handles power and is well rounded for all genres really a great sub

By charles on September 27, 2015

4

found this helpful.

Excellent sound quality and value!

The weekend I received the PWM304 I had mounted it in a belva box I got in a combo deal. The simplicity of the push terminals and Ohm selector make for an easy install. After getting hooked up to my home receiver to which I bought the subwoofer for, I was baffled by what I heard. There was no distortion and the bass was tight and accurate. After watching movies, playing video games and listening to music with it hooked up, I have nothing but positive things to say.

To anyone that is looking to buy a subwoofer for SPL, this is NOT your choice to go with. It was designed with sound quality in mind and there are better alternatives for the price, if that is what you are in to.

By Anthony on November 23, 2015

1

found this helpful.

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