Pay in installments of $49.99 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
MTX RTP8A 8” 120W RMS Amplified Vented/Ported Car Subwoofer EnclosureMTX Audio RTP8A Road Thunder 8" Amplified Vented Subwoofer System 360W Max The MTX RTP8A is a high performance powered subwoofer system that combines a high output 8 inch driver, a class D amplifier, and a precision vented enclosure into one compact, space saving package. Built with 40 years of MTX bass expertise, the RTP8A is designed for enthusiasts who want to "Elevate Their Sound" without sacrificing their entire trunk. The enclosure features a
MTX Audio RTP8A Road Thunder 8" Amplified Vented Subwoofer System – 360W MaxThe MTX RTP8A is a high-performance powered subwoofer system that combines a high-output 8-inch driver, a class D amplifier, and a precision-vented enclosure into one compact, space-saving package. Built with 40 years of MTX bass expertise, the RTP8A is designed for enthusiasts who want to "Elevate Their Sound" without sacrificing their entire trunk. The enclosure features a "hatchback style" angled back, allowing it to fit flush against rear seats for a clean, factory-integrated look. With 120 Watts of RMS power, a durable polypropylene cone, and an included remote bass control, the RTP8A delivers the punchy, impactful low-end MTX is famous for, all while remaining incredibly easy to install in virtually any vehicle.
Key Features
- All-In-One Bass Solution: Combines a specifically tuned 8" subwoofer and integrated amplifier in a custom-engineered vented enclosure
- Power Handling: 120 Watts RMS (360 Watts Peak) driven by a high-efficiency Class D monoblock amplifier
- Angled Back Design: Hatchback-style enclosure with an angled back allows for a flush fit against rear seats, maximizing cargo space
- High-Output 8" Driver: Features a lightweight and durable polypropylene cone for efficient air movement and impressive, feel-it-in-your-chest bass
- Universal Connectivity: Includes both RCA (low-level) and Speaker-level (high-level) inputs for easy connection to factory or aftermarket radios
- On-The-Fly Control: Includes an External Bass Control (EBC) remote, allowing the driver to adjust subwoofer volume from the front of the vehicle
-
Precision Tuning:
- Variable Low Pass Filter: 50Hz – 200Hz
- Variable Bass Boost: 0 – 12dB
- Professional Finish: Wrapped in durable, aviation-grade black carpeting with an attractive MTX Audio logo and a protective steel grille
- Substantial Build: Constructed with solid 15mm MDF to ensure a rigid, vibration-free performance
- Frequency Response: 35Hz – 250Hz
- Dimensions: 13" H x 13" W x 13.75" D
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 22 reviews
Sort
Product Reviews
★★★★★ 5
I will buy this planner every year!
Format: Book Supplement
I had a 2025 Old Farmers Almanac Planner and loved it. I had to get the 2026. This planner is perfect for me. Shows the month at a glance, but then has the day pages where you can put plenty of notes!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
★★★★★ 4
A nice themed planner
Format: Book Supplement
Not a garden/farming planner. Just a regular planner with some Old Farmers Almanac rubbed on it. Really well made and nice looking but not really super special or helpful for farming or gardening.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
★★★★★ 5
Got one last year for the first time and I'm hooked!
Format: Book Supplement
I love this planner. And the calendar. I want very specific things in my planner and this checks all the boxes. Very detailed. Love all of the daily facts. Got one last year for the first time and I'm hooked!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Great Book
Format: Book Supplement
Been buying this Planner since 2022. First year I bought it for myself. 2nd year myself & my bestie. 3rd year myself, bestie & another friend. I’m sure you get the idea. 😁 I keep up with daily weather predictions on the calendar page & daily activities, of any type, in the days of the week section. I can see when I planted a crop or when I SWR the bed (for those not in the know it means strip, wash & remake the bed). My youngest daughter got a real kick out of that one. Told her when I passed she could read them all & try to figure out what the heck I was talking about. *LOL* Great book, beautiful renderings & interesting tips & notations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
Very organized planners
Format: Book Supplement
Beautiful planner
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026