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MTX RTS15-44

Road Thunder Series 15" subwoofer with dual 4-ohm voice coils

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  • MTX RTS15-44

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  • MTX RTS15-44

  • MTX RTS15-44

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Our take on the MTX RTS15-44

by Jo Greene
MTX

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

MTX's Road Thunder subs dish out heavy-hitting bass in your ride, perfect for filling out rock, R&B, jazz, classical, or anything else on your playlist. The RTS15-44 sub features a 15" polypropylene cone supported by a big rubber surround that resists cracking or separating. The sub's cooling system features forced-air venting in the stamped solid-steel frame that keeps the voice coils cool. The uniquely shaped spider assembly and extended pole piece ensure linear cone movement, so your bass sounds full, deep, and clean.

DVC versatility
Dual 4-ohm voice coils allow you to wire this sub for 2- or 8-ohm impedance, giving you more flexibility in setting up your system. MTX optimizes this Road Thunder sub for sealed, ported, and bandpass enclosures so you can choose the type of bass you want in your ride.

To drive this single subwoofer, we recommend a mono amplifier rated between 225 and 450 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

See more info on this item

Highlights:

  • 15" 4-ohm subwoofer with dual 4-ohm voice coils
  • polypropylene woofer cone with nitrile-butyl rubber surround
  • stamped solid-steel frame
  • power range: 50-300 watts RMS (900 watts peak power)
  • frequency response: 20-150 Hz
  • sensitivity: 93.9 dB
  • top-mount depth: 6-3/8"
  • sealed box volume: 1.5 cubic feet
  • ported box volume: 2.5 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
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15 -inch
Impedance
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4 ohms
Cone Material
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Polypropylene
Surround Material
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Rubber
Ideal Sealed Box Volume (cubic feet)
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1.5
Ideal Ported Box Volume (cubic feet)
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2.48
Port diameter (inches)
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N/A
Port length (inches)
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N/A
Free-Air
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No
Dual Voice Coil
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Yes
Sensitivity
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93.9 dB at 2.83 watts
Frequency Response
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20 - 150 Hz
RMS Power Range (Watts)
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50-300
Peak Power Handling (Watts)
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900
Top Mount Depth (inches)
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6 1/2
Bottom Mount Depth (inches)
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7 1/8
Cutout Diameter or Length (inches)
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13 3/4
Vas (liters)
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184.5
Fs (Hz)
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23.9
Qts
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0.586
Xmax (millimeters)
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10.67
Parts Warranty
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5 Years (3-5 Prorated)
Labor Warranty
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5 Years (3-5 Prorated)
Product Research
What's in the box?

Download owner's manual

  • 15" Dual 4-ohm voice coil subwoofer
  • Specifications and wiring instructions

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 open the box, verify contents, 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.

Features
Enclosure Compatibility
Warranty

Features

Cone Design: The woofer uses a polypropylene cone with a raised MTX Audio logo. The NBR (Nitrile Butadiene Rubber) surrounds are resistant to ozone and UV rays for extreme durability.

Dual 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel the woofer presents a 2-ohm load. When the voice coils are wired in series the woofer presents an 8-ohm mono load. Additionally, each coil can be connected to a different amplifier channel and each channel will see a 4-ohm load.

Voice Coil: The 2" diameter, eight layer voice coil is designed for high power handling and large linear excursion.

Asymmetrical Linear Drive System (ALDS): The Asymmetrical Linear Drive System consists of a flat, progressive spider that improves suspension and an extended pole piece that smoothes out the cone's linear motion. The result is high output and low distortion.

Spider Plateau Venting: Heat from the voice coil is vented through metal-mesh covered vents that surround the back of the spider. As the woofer travels back and forth, cool air is pulled in and heated air is pushed out.

Terminals: The woofer features a pair of heavy-duty chrome spring post terminals which can accept single banana plugs, pin connectors or bare wire up to 10-gauge.

Enclosure Compatibility

Sealed Box: For the best possible sound quality where space is a premium MTX recommends a sealed enclosure with an optimum internal volume of 1.5 cubic foot. Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Vented Box: The recommended vented box has a net internal volume of 2.48 cubic feet with a slotted port 14-1/2" x 2" x 20-3/4". Vented (or ported) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power.

Warranty

5 Year Warranty Terms: This product carries a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.
 
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MTX RTS15-44 Reviews

Average Customer Review:

2 people say:

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Filter by rating:
5 out of 5

MTX subwoofer

Written By D Wilson, Houuston, Tx on Friday, August 15, 2014
Crutchfield Customer Review (What's this?)
 
Just what I was looking for to replace the 15" speaker for my home audio system.
Pros:
Good quality for the price and sound greats
Cons:
None yet.
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
4 out of 5

kind of get what you pay for

Written By Anonymous, USA on Thursday, November 28, 2013
Crutchfield Customer Review (What's this?)
 
Can see brush marks on the surround from where they put glue over the mounting holes. Aluminum bottom ring holding magnet on was scratched. Magnet itself had little chips knocked off it, but no cracks. Have not listened to it yet, but will update when I have. It is mounted in a S/O bass bunker with a S/O 2x175W amp. I'm hoping for good results.
Pros:
Nice big woofer for the money. Will update on sound when listenned to.
Cons:
You kind of get what you pay for. Build quality was not the greatest, but should not degrade sound quality. Hopefully it will last for years with the butyl rubber and polypropilene.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
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For a more in-depth review and enhanced detailed information on the MTX RTS15-44, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_236RTS1544/MTX-RTS15-44.html ).