Search  for anything...
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 141 reviews
Condition: New
Checking for the best price...
$169.99 Why this price?
Holiday Deal · 15% off was $199.95

Buy Now, Pay Later

As low as $28.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 7 left in stock, order soon!
Fulfilled by Spreetail
Arrives Saturday, Nov 15
Order within 10 hours and 26 minutes
Available payment plans shown during checkout

Recently Viewed

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: 1200 Watts


Frequency Response: 250 Hz


Connectivity Technology: RCA


Audio Output Mode: Stereo


Mounting Type: Car Mount,Ground Cable,Strap Mount


Model Name: RT8PT


Speaker Type: Subwoofer


Special Feature: Built In Microphone


Recommended Uses For Product: car


Compatible Devices: Car Audio System


Subwoofer Diameter: 8 Inches


Surround Sound Channel Configuration: 3.0


Color: Black


Included Components: 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


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


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Remote


Wireless Communication Technology: No Wireless Communication Technology


Speaker Size: 8 Inches


Power Source: Corded Electric


Woofer Diameter: 8 Inches


Vehicle Service Type: Car


Customer Package Type: Standard Packaging


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Subwoofer Connectivity Technology: Wired


UPC: 744271358643


Chassis Size: Ported


Manufacturer: MTX


Shape: Cylinder


Item Weight: 21 pounds


Item model number: RT8PT


Date First Available: February 4, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 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
    • Vette rock out!
Just installed the 8 inch, powered tube in my 2019 Vette to replace a large Subthump, 2-10 inch speaker sub box. I didn’t have the Subthump in use for long simply because it was taking up valuable trunk space, and the much smaller MTX paired very well with the factory Bose system. I’m an older rock guy, but I can hear quality and I’m actually surprised how much better it made the system sound besides space saving. Be advised, a Corvette coupe is open to the trunk. I point the speaker rearward towards slanted hatch and the bass is pretty epic. I’ve had a Bazooka in an enclosed hatch on my boat and although it supplied a needed punch, this particular sound scenario is bomb. I usually wait to review items, but I was very happy with first results from sonic standpoint. One con, the speaker is unprotected and will definitely need a grill over the speaker to keep it from puncture. Although they are available, it’s an annoying $20 additional to spend and install when it should have come complete with one included. This unit is meant to be Placed in an active trunk, the speaker is like a target. ... show more
Reviewed in the United States on April 30, 2020 by PJM
    • Put this in my daughter's car and she was happy, but it didn't quite hit as hard and ...
Put this in my daughter's car and she was happy, but it didn't quite hit as hard and clean as I had hoped. I spent my teens and twenties with a car audio addiction and know 8" subs can hit hard, not usually as low as something larger, but they do wonders with kick drums and other punchy sounds. This box, being ported, tends to sacrifice quality hard hitting bass, that a sealed enclosure would offer, in exchange for louder more boomy bass that sounds muddy to my ears. Cant really go wrong for the price and ease of install... just wish this came in a sealed enclosure. And the lack of a grill is a real downer. I have seen too many punctured subs to think that the grill is unnecessary. This goes in the trunk along with all the other junk that people toss in there that slides/rolls around. Put a grill on it. ... show more
Reviewed in the United States on July 24, 2018 by Joe
    • Wiring kit was not received
I didn’t receive the wiring kit
Reviewed in the United States on July 18, 2025 by Patt
    • 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
    • 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
    • Good product
It’s awesome sounding speaker it works great for the size it was a little to big for what I bought it for but I still will buy it again
Reviewed in the United States on February 2, 2024 by Cristian arroyo
    • Hard hitter!
This little guy hits pretty hard for what it is, put it in the back of an 88 foxbody to make cruising a bit more enjoyable. Very happy with this purchase!
Reviewed in the United States on January 7, 2025 by Ray

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...