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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
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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
4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Works
Color: for X3 2022-2024,X4 2022-2025【12.3 inch Screen】, Color: for X3 2022-2024,X4 2022-2025【12.3 inch Screen】
It fits with my BMW X3 2022. It also has a back pocket that offers storage behind the screen. I wish it had a magnetic holder but that has nothing to do with this product.
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Reviewed in the United States on March 29, 2025
★★★★★ 3
Fits great minus no horizontal view
Color: for X3 2018-2021,X4 2019-2021【10.3 inch Screen】
Can’t move the phone to horizontal, only vertical. I sent it back because of this.
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Reviewed in the United States on December 4, 2025
★★★★★ 4
Works as expected
Color: for X3 2018-2021,X4 2019-2021【10.3 inch Screen】
Works as expected.
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Reviewed in the United States on January 4, 2026
★★★★★ 1
Not compatible
Color: for X3 2018-2021,X4 2019-2021【10.3 inch Screen】
Nice, but it didn't fit my X3.
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Reviewed in the United States on October 30, 2025
★★★★★ 1
Very slow, but good quality
Color: 2White
It works as expected, but my phone says that it is a slow charger even when plugged in my fast charger brick. False advertising. Really wish it charged a little faster
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Reviewed in the United States on April 30, 2026