This exclusive package is brought to you by Onlinecarstereo. We have put together this bundle to kickstart your vehicle to the path of excellent car audio.
We are an authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

Upgrade your truck audio system with the Ground Shaker GS-TOYTC18B under-seat subwoofer enclosure, engineered for tight-fit installations without sacrificing bass performance. Built from durable 5/8" high-quality MDF wood, this enclosure delivers a solid, vibration-resistant structure that enhances low-frequency response for deep, clean bass inside your cabin.
Designed for serious sound performance, the GS-TOYTC18B features a fully sealed construction reinforced with premium wood glue and Titebond silicone for an airtight fit. This ensures tighter bass response, improved accuracy, and long-lasting durability. The enclosure is finished with a durable trunk-liner carpet, giving it a clean, factory-style appearance that blends seamlessly into your vehicle interior.


Perfect for space-saving installations, this upward-firing under-seat subwoofer enclosure is designed to maximize bass projection directly into the cabin. It includes a spring-loaded terminal for secure and reliable wiring connection. Please note, installation may require minor trimming under the seat depending on subwoofer height, and it is not compatible with hybrid trucks or carpeted storage compartments.

Experience powerful bass in even the tightest spaces with an all-weather thin subwoofer, engineered for durability and versatility in any vehicle. Dual 2-Ohm voice coils provide flexible wiring options for seamless system integration and optimized performance.
Built to withstand harsh conditions, the UV-resistant cone and surround ensure long-lasting performance, while SoloKon™ cone technology with an integrated vented back brace minimizes distortion and enhances cooling for consistent, high-quality bass.


Red double stitching ensures a strong, lasting bond between the Santoprene surround and polypropylene cone, while a forced-air cooling system keeps the subwoofer up to 20% cooler, maintaining performance and reliability even under heavy use.
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Features:
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