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Shallow-mount 12" 4-ohm subwoofer
Our take on the MTX FPR12-04 by Crutchfield's John Pollard
Shallow sub, intense bass
MTX built the FPR12-04 subwoofer to give you big bass in a vehicle that that doesn't have room for traditional large subwoofers. This sub comes in at only 3-3/8" deep, so it mounts in low-profile enclosures that'll fit almost anywhere. This sub handles up to 400 watts RMS, and delivers the kind of powerful performance that you'd usually only experience with a traditional sub. A pair of these 4-ohm subs work great with your mono amp, or you can power a single sub with a 2-channel amp that's bridged to mono.
You can push the FPR12-04 hard, and it's built to survive in the tough car environment. A lightweight aluminum dustcap protects the polypropylene cone, while the rugged rubber surround offers long-lasting durability. MTX's unique Spider Plateau Venting keeps your subwoofer running cool during intense jam sessions. This sub requires a sealed box.
To drive this single subwoofer, we recommend a mono amplifier rated between 300 and 600 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.
Great sounding subs from small footprint, I am running two of the 12" 4ohm subs from a Rockford Power Monoblock amp in a small .84 liter box. Would recommend 400 watts for each sub. Sounds awesome in the back of the 2011 Tundra crewmax!
Scott, Virginia Beach, VA
What's in the Box:
- One 12" Subwoofer
- Specification sheet
Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.
- 12" shallow-mount subwoofer with single 4-ohm voice coil
- polypropylene woofer cone with rubber surround
- power range: 200-400 watts RMS (800 watts peak power)
- frequency response: 22-150 Hz
- sensitivity: 83 dB
- top-mount depth: 3-3/8"
- sealed box volume: 0.84 cubic feet
- warranty: 2 years
- Our 60-day money-back guarantee
MTX FPR12-04 Reviews
Average Customer Review(s):
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Features and Specs
|Ideal Sealed Box Volume (cubic feet)||0.84|
|Ideal Ported Box Volume (cubic feet)||N/A|
|Port diameter (inches)||N/A|
|Port length (inches)||N/A|
|Dual Voice Coil||No|
86.8 dB at 2.83 volts
83 dB at 1 watt
|Frequency Response||22 - 150 Hz|
|RMS Power Range (Watts)||200-400|
|Peak Power Handling (Watts)||800|
|Top Mount Depth (inches)||3 3/8|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||11 1/16|
|Parts Warranty||2 Years|
|Labor Warranty||2 Years|
Shallow Mount Design: The MTX Thunder Flat Piston Round (FPR) subwoofers are designed for applications where space is a premium. They are optimized to perform best in a sealed enclosure, no matter what type of music you listen to. The recommended enclosure design (0.84 cubic feet) was tested by the MTX engineering team. The subwoofer uses a polypropylene cone with an aluminum dustcap.
- Fs (resonant frequency): 30 Hz
- Qms (mechanical Q at Fs): 5.52
- Cms (suspension compliance): 0.106 mm/N
- Mms (diaphragm/coil mass, including acoustic load): 264.17 g
- Rms (suspension's mechanical resistance): 9.067 kg/s
- Vas (equivalent compliance volume): 44.13 liters
- Xmax (maximum linear peak): 13 mm
- D (cone diameter): 10.35"
- Sd (cone area): 543.3 cm² (0.05433 m²)
- Vd (peak displacement volume): 0.7051 liters
- Qes (Electrical Q at Fs): 0.94
- Re (voice coil DC resistance): 3.36 Ω
- Bl (force factor): 13.35 Tm
- Qts (total Q at Fs): 0.80
- η0 (reference efficiency): 0.122%
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
1 question already asked
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on placement and what you will need for an installation in your vehicle. [ Jeff Nov 17, 2014 ] Staff