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MTX

MTX Audio RT8PT 8" 240W Enclosure Amplified Vented Tube Box Car Loaded Subwoofer & Soundstorm AKS8 8 Gauge Car Amplifier Amp Complete Wiring Kit

  • Based on 162 reviews
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Availability: Only 9 left in stock, order soon!
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Arrives Tuesday, Aug 11
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Features

  • Boost Your Drive Mood: Introducing the MTX Audio 240 Watt Car Subwoofer with 8 Gauge Amp Wiring Kit for everything you need to achieve a premium sound in your car
  • Versatile and Durable: Fits into any space and features a butyl rubber surround, built-in amplifier, and vented enclosure design to increase bass output; Hits bass notes from 35Hz to 250Hz
  • Sleek Finish with Stable Mounts: Comes with mounting straps and wired bass control with remote control included; Aviation grade carpet is durable and neutral color for use with all interiors
  • Wiring Kit Included: MTX Subwoofer package comes with all the needed wiring systems, mounts, and accessories so you do not have to buy them all separately, just order the powered car subwoofer set and install
  • Dimensions and Specifications: Car subwoofer kit has a frequency response of 35 250Hz, crossover with variable, 50Hz 200Hz, 12dB/Oct, and the whole powered subwoofer set measures 21.25 inches long and 9.84 inches in diameter

Brand: MTX


Speaker Maximum Output Power: 240 Watts


Frequency Response: 250 Hz


Connectivity Technology: RCA


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Car Mount,Ground Cable,Strap Mount


Enclosure Material: Aviation grade carpet, Butyl Rubber


Speaker Type: Subwoofer


Additional Features: Built In Microphone


Antenna Location: car


Subwoofer Diameter: 8 Inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Remote


Speaker Size: 8 Inches


Woofer Diameter: 8 Inches


Specific Uses For Product: car


Controller Type: ring


Unit Count: 1.0 Count


Item Dimensions D x W x H: 9.84"D x 9.84"W x 9.84"H


Compatible Devices: Car Audio System


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Brand: MTX


Model Number: RT8PT


Model Name: RT8PT


Built-In Media: 17-foot 8-gauge red power cable, competition high-quality fuse holder, 3 feet of 8-gauge black ground cable, 16 feet of 18-gauge blue turn-on wire, a 20-foot high-performance RCA interconnect, 20 feet of speaker wire, 20, 4-inch wire ties, 3, rubber grommets, a Number 10 gold-plated ring terminal, a 5/16-inch gold-plated ring terminal, a 1/4-inch gold-plated ring terminal, mounting straps, wired bass control, and remote bass control


Number of Items: 1


Customer Package Type: Standard Packaging


UPC: 744271358643


Manufacturer: MTX


Speaker Maximum Output Power: 240 Watts


Frequency Response: 250 Hz


Number of Audio Channels: 3.0


Connectivity Technology: RCA


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Review with pros and cons
Rating: Enclosure (Box): 8/10 Amplifier: 10/10 Speaker: 7/10 I didn’t expect a compact bass tube to impress me this much — but once properly calibrated, ( have to be properly calibrated 50 hz - gain 25 % ) the MTX RT8PT delivers a surprisingly refined audio experience. No, it won’t shake windows or rattle the chassis, and it isn’t meant to. What it does offer is something far more valuable: a clean, structured, and emotionally engaging low-end that blends beautifully with factory door speakers. Technically, the internal amplifier is the star of the show. It reacts fast, stays clean under pressure, and controls the driver with precision you don’t normally see in this price range. Set around 50–63Hz, the crossover lets the sub reach its sweet spot — tight, musical bass rather than bloated rumble. The enclosure design (an 8/10 from me) helps maintain that tight character. You feel the bass more than you see it, and that’s exactly what a proper musical sub should do. It fills the cabin with warmth and definition without overwhelming the rest of the frequency spectrum. The driver itself is solid (7/10). It’s not a powerhouse, but in this setup it behaves exactly as intended: clean lows, fast transient response, and zero distortion when tuned correctly. It shines especially with 80’s music — where accuracy and rhythm matter more than raw SPL. Emotionally, this thing has personality. It brings life to songs you’ve heard a thousand times. It gives the music soul without demanding attention. It reminds you that car audio isn’t only about loudness — it’s about feeling the mix the way the producer wanted. If you want a balanced, musical, mature low-end — not just noise — the MTX RT8PT is absolutely worth it. It won’t break your windows, but it will make you fall in love with your music again ... show more
Reviewed in the United States on December 11, 2025 by David Ioselli
    • Great trunk sub for my 2020 mustang gt coupe
Easy to mount, hook up, installation wiring kit makes it easysounds great in my 2020 mustang gt. We'll worth money spent.
Reviewed in the United States on December 15, 2025 by Lou
    • Hidden gold
Hidden gold amazing for the $$ get It, if you want some bass and not break the bank, quick, easy, install. MtX always comes through really surprised me !!! Was not expecting that out of a loaded 8"!!
Reviewed in the United States on March 10, 2026 by RedWood customs
    • Amazing Seller/Customer Service
Nice addition to my 2010 Toyota Yaris Hatchback. I would not put this in a trunk. JVC aftermarket head unit. Skar 6.5 X 4 swapped out stock speakers. That alone made a huge difference in the quality and volume level, but it was missing just a bit more low end. Now its perfect. Loud, but not teenager obnoxious loud. Inside the car loud. Good quality sound. Adjustments can be made to dial it in to your taste. Bass knob is handy when need to make adjustments for each song. ... show more
Reviewed in the United States on July 30, 2025 by JustSomeGuy
    • Total ripoff
This is the worst speaker I have ever bought and then when I return all the items they only gave me half of what it's sold for.
Reviewed in the United States on September 19, 2025 by JBF
    • It arrived and hooked up sounds great
Very awesome speaker sounds really good adds a lot of deep bass has a clean look and easy setup
Reviewed in the United States on November 9, 2025 by Jack Noel Cowles
    • Works Great!!!
First off ….its NO professional setup but if you are wanting to add a little extra bump bump in the trunk of your Mommy Missile then this thing is perfect….My wife’s Hyundai Santa Fe has great Highs and Mids but the Bass was just not there….I slapped this thing in the back and wired it up to the factory stereo and was very impressed with the overall quality of sound and how it looks!!! Very good value!!!! It doesn’t perform as well as my Memphis setup but within its own weight class it was well worth the money ... show more
Reviewed in the United States on October 23, 2024 by Justin Causey
    • Wiring kit was not received
I didn’t receive the wiring kit
Reviewed in the United States on July 18, 2025 by Patt

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