Search  for anything...
MTX

MTX Audio RT8PT 8" 240W Peak Amplified Vented Car Subwoofer Tube Enclosure

  • Based on 816 reviews
Condition: New
Checking for the best price...
$199.95 Why this price?
Save $99.05 was $299.00

Buy Now, Pay Later

As low as $33.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – 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, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

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 4 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Oct 16
Order within 4 hours and 7 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: 8" Powered Subwoofer Enclosure


Pattern: Subwoofer


Features

  • Amplified Tube Subwoofer: Single 8-inch subwoofer features a built-in amplifier; Power packed with 240 Watt MAX and 120 Watt RMS
  • Durable Construction: Butyl rubber surround increases subwoofer durability; Aviation grade carpet is durable and neutral color for use with all interiors
  • Bass Control: External Bass Control included so you can customize your sound; Vented design increases bass output
  • Mounting Straps: Mounting straps included for secure installation
  • Specifications: Frequency Response: 35 250Hz; Crossover: Variable, 50Hz 200Hz, 12dB/Oct; 8 Gauge Power and Ground Wiring is Recommended; Dimensions: 21.25L x 9.84W x 9.84H

Description

RT8PT Front View Compact Size Not Performance Don't be fooled by the compact size of the RT8PT, this amplified and vented bass tube is designed to deliver bass like only MTX can. This low profile unit can be installed in virtually any vehicle without sacrificing space. The 8-Inch subwoofer, integrated amplifier, and vented enclosure bass you have to experience to believe. Key Features: Integrated 120 Watt RMS Amplifier 8-Inch High Output Subwoofer Vented Enclosure Design High and Low Level Inputs for Easy Connection to Any Source RT8PT Amplifier and Vent View 40 Years of Experience This universal amplified enclosure was designed for new enthusiasts looking to experience what adding bass to their music sounds like and for those hard core bass fans who have unfortunately had to grow up and can no longer drive around with three 15-Inch subs in their trunk. The 8-Inch high output woofer used in this unit includes a lightweight and durable polypropylene cone that efficiently moves air for excellent output. The integrated class D amplifier can deliver up to 120 watts RMS power to the subwoofer using either high or low level inputs, so it is easy to connect to any type of radio. The unit also includes an external bass control that can be connected to the amplifier and mounted near the driver allowing for adjustment on the go.

Brand: MTX


Speaker Maximum Output Power: 240 watts


Frequency Response: 50 hertz


Connectivity Technology: wired


Audio Output Mode: Standard Audio Output Modes


Audio Output Mode: Standard Audio Output Modes


Mounting Type: Floor Standing


Enclosure Material: Aviation Grade Carpet, Metal/Plastic (Enclosure), Paper/Polypropylene/Kevlar/Aluminum/Silk (Components)


Speaker Type: Subwoofer


Additional Features: Lightweight


Antenna Location: For Music Players, For Surround Sound Systems, For Smartphones or Tablets, For Televisions, For Computers


Subwoofer Diameter: 20 centimeters


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Remote


Speaker Size: 8 inches


Woofer Diameter: 8 inches


Specific Uses For Product: For Music Players, For Surround Sound Systems, For Smartphones or Tablets, For Televisions, For Computers, For Gaming Consoles


Controller Type: Corded Electric


Speaker Maximum Output Power: 240 watts


Input Voltage: 12 volts


Unit Count: 1 Count


Item Dimensions D x W x H: 13"D x 24.13"W x 11.25"H


Item Weight: 20.8 pounds


Compatible Devices: Desktop, Gaming Console, Home Theater, Laptop, MP3 Player, Smartphone, Tablet, Television


Compatible with Vehicle Type: & SUVs, Select Cars, Truck


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 inches


Brand: MTX


Model Number: RT8PT-FBA


Model Name: RT8PT


Built-In Media: RT8PT-FBA


Warranty Description: 2-Year Manufacturer Warranty


Number of Items: 1


Customer Package Type: Standard Packaging


UPC: 193802048193 715442310036


Global Trade Identification Number: 36


Manufacturer: MTX Audio


Age Range Description: Adult


Frequency Response: 50 hertz


Number of Audio Channels: 2


Connectivity Technology: wired


Wireless Technology: Radio Frequency


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA, High Level Input, Low Level Input


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 16

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great deal for the price
Number of Items: 1
I love this subwoofer for the price and for my needs. I drive a Toyota Tacoma double cab, and have this mounted in the middle of the back seat (almost looks like an arm rest). It is larger than it looks in the pictures, but I have yet to see any smaller subwoofer/box/amps out there. This guy definitely improved the sound of my stock system by 100%. It doesn't necessarily shake the truck, but can bump if you want it to. Keep in mind that I do have it set up to my stock head unit, so it simply spliced into the rear speaker wire and not plugged into a subwoofer port. I understand this, but this only requires that I change a few settings on my head unit when I switch between different genres of music. I listen to everything from classic rock to alternative to rap to electronic music. This seems to sound better for certain genres over others. Classic rock music: Sound is great, it almost sounds like the guitars/bass guitars are playing in the vehicle with me. I recommend turning the bass lower for classic rock, but it provides a nice deep background. Pop/Alternative: Requires some tweaking between songs sometimes. Some songs sound great, others will shake the sub too much and drown out other noise. Overall, still sounds pretty good. Rap: This is mainly what I listen to while driving. I've noticed that it's real hit or miss depending on the frequency of bass in the song. About 75% of music sounds great, without that BUMP that other subs can give. Some songs will try to bump really hard, and this sub can't take a huge peak amount of bass, it's more for RMS bass playing steady. I like to actually hear music, and this adds a new dimension to rap without being obnoxious. Electronic: This sub really shines playing most electronic music, as it plays a nice steady bass instead of bumping like some rap music beats. Really sounds good, even turned up pretty high on the bass. Country: I hate country. I won't even test it out for one song for this review. Overall, I'd recommend this sub setup for any vehicle, not just for a truck with a small space. If you like steady bass, and not thumping/bumping/shaking bass, this is the one for you. For the price, you won't beat it. I got this fully installed in my truck for about $50, so all together about $200 total. It looks great with the carpeting, and I'm definitely satisfied with my purchase. ... show more
Reviewed in the United States on June 3, 2015 by Dan McDonald
    • Awesome Subwoofer
Number of Items: 1
Love this subwoofer! Never owned a 8" subwoofer always went big but this sounds real big! I love just go for it you won't regret it!
Reviewed in the United States on September 26, 2026 by Walter
    • Good deal for the price
Number of Items: 1
The MTX RT8PT does a fair job filling in the lower frequencies for most music. I completely upgraded the sound system in my wife's 2007 Toyota Highlander (head unit, door speakers with dedicated 400 watt rms 4 channel amp, this sub, and all new sound system wiring). I ran 4 gauge power wire from battery to distribution block with 2x 8 gauge wires exiting to the speaker and sub amps + proper grounding to chassis. I put Kenwood component set in front doors and coaxials in rear doors. Even with taking it easy with the soundstream 4 channel amp, the door speakers are almost too loud for this low power subwoofer. Ideally we would have gone with a 12" subwoofer with about 400-600 watts rms but we didnt want to sacrifice much of her cargo space. Though this subwoofer cannot hit the lowest notes in electronic music (below 35Hz), it covers the low range well foor most music types. Country and rock especially sound good with the punchy and responsive mtx 8" sub. It does hit hard enough to feel the vibrations. Overall we are very pleased because it helped us save cargo space while putting out enough bass to take the load off the door speakers (which we have crossed over highpass at 80Hz) and fill in those lower bass notes. The built in amp seems to have the right amount of power to drive the woofer without any over extension or distortion. If you like really deep and loud bass, and have space for a larger subwoofer setup, this is not the product for you. However, if space is important and you are satisfied with a sub to fill in lower notes without being loud with big vibrations, this sub will do the trick and reproduce punchy and accurate bass. I took one star away for the lack of volume this sub can achieve and the shape of the enclosure. Though the rounded top looks good, that and the angled front and back make for fewer positioning options. I did manage to get this placed verically in the back corner of her SUV, but it wasn't easy and required the use of some ratcheted straps I had. The straps that came with the sub would work for flat floor mounting to keep it from rolling but a horizontal orientation takes up more floor space than we prefer. ... show more
Reviewed in the United States on September 1, 2013 by Amazon Customer
    • Great Little Sub, Great Buy, Too!
Number of Items: 1
I spent alot of time online researching to find the right sub for my PT Cruiser.Given the nature of the interior of the Cruiser, (it's basically a big dome shape), I knew I would not need a big hulking sub box, but rather something smaller, self powered, that would produce tight, accurate bass, rather than big, boomy, sloppy bass. I really just wanted good fill-in bass for an all around balanced sound, not a bass heavy design. I listen to music, not bass... Anyway, this MTX was the right choice. I had it installed at Best Buy, it cost me $158 which included 8 gauge wire and labor. I will say that like most speakers, and electronics in general, this sub needed some break in time. When I listened to it the first time, I thought I had made a big mistake, it required some break in time, as most electronics do, but within an hour or so, it had completely smoothed out and blended well with the rest of the system. Now my auto system is complete, and I can say that this sub is a good one, it sounds good and clean, and it's not too big, yet produces some serious bass. I should also say that I keep the sub level pretty low in my system, because that's the sound I'm going for... fill-in bass. But, I can also attest that this sub can deliver big SPL's if that's what you want. Very versatile. Great buy. Quick shipping... Very satisfied. ... show more
Reviewed in the United States on August 25, 2011 by JCinIndy
    • Easy stock system upgrade
Number of Items: 1
I bought this to put under the bench seat on my Yamaha AR195 boat. Easy peezy to hook up. Looks great and seems well built. But.............Sound is Meh......Just not enough volume/bass out of it. It does make the music "fuller", but not much actuall bass. I know, I know....you get what you pay for and this is definitely worth the money. Just coming from a 90's bass head. If you want thumping bass.....Pass. Small update....after a few days out on the water and probably 30 hours of nonstop play at high volume....this little thing jams country and rock really well. Just not made for bass heads. I am upping my previous review 1 more star as it has held up well, and I got many compliments on my system with it. Edit....After another season of beating this thing mercilously...it still jams hard. Great Buy! ... show more
Reviewed in the United States on May 18, 2022 by S.W.
    • Only lasted 2 months!
Number of Items: 1
Absolute trash. It worked great for 1 months but now the amp does not output sound. I wasted hours trying 3 radios and 2 RCA cables and nothing worked. It lasted 2 months and it is too late to return so don't buy!
Reviewed in the United States on August 12, 2025 by Gregory Cook
    • Strong Punchy subbass
Number of Items: 1
Strong bass for an 8inch subwoofer, Built in amplifier with a bass knob. Value A
Reviewed in the United States on April 9, 2026 by Amazon Customer
    • Ehh...not what i thought...but it was my mistake...
Number of Items: 1
I am returning this item. It does produce a clean bass with certain types of music. You have to constantly tweak your settings to keep up with certain music. It does not create trunk rattling bass. I purchased it based on all these good reviews. But that was my mistake because everyone is different and to a lot of other people this will sound nice and clean for them if they don't want something that is very loud. I have always had very hard hitting subs and loud systems in my past vehicles. So i cant really complain about the quality of this product and the price because it is a good deal. Its just not for someone that has experience with high end audio systems. This will seem like a weak product to you. But it was worth a try. ... show more
Reviewed in the United States on October 23, 2014 by Gonzalo Cortes

Can't find a product?

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