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.
If you are building in a tight space but still want real low-end authority, the Rockford Fosgate Punch P3SD2-8 shallow subwoofer is made exactly for that kind of setup. Its ultra-shallow motor assembly lets it fit into compact enclosures and tricky vehicle locations without sacrificing performance. Even with its small footprint, it still delivers controlled, punchy bass that feels tight and responsive instead of weak or thin.
This sub gives you real flexibility thanks to its dual 2-ohm voice coils, letting you wire it for 1-ohm or 4-ohm loads depending on your amplifier goals. That means you can tune your system for maximum output or better balance without being locked into one configuration. With CEA-2031 rated power handling, it is built for consistent long-term performance, so you can push your system confidently without worrying about reliability dropping off over time.
The P3SD2-8 uses expanded cone efficiency technology with a VAST surround design that increases radiating area without increasing physical size. That translates into stronger bass output from a compact 8 inch form factor. The FlexFit basket also makes installation easier by allowing fine adjustment for a clean, secure fit in your enclosure. Whether you are going sealed for tight accuracy or ported for more output, this sub adapts cleanly to your build style.
Engineered for real-world audio systems, this subwoofer is designed to maintain stable performance under sustained use while keeping distortion low even at higher volumes. The reinforced aluminum trim ring adds protection and a clean finished look, while the optimized enclosure options let you choose between tight sealed bass or more aggressive vented output tuned for extra punch. With shallow depth design, flexible wiring, and strong build quality, it is a compact sub that still delivers a full-size bass experience.
Features:
Specifications:
Features:
Specifications:
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.
If you are building in a tight space but still want real low-end authority, the Rockford Fosgate Punch P3SD2-8 shallow subwoofer is made exactly for that kind of setup. Its ultra-shallow motor assembly lets it fit into compact enclosures and tricky vehicle locations without sacrificing performance. Even with its small footprint, it still delivers controlled, punchy bass that feels tight and responsive instead of weak or thin.
This sub gives you real flexibility thanks to its dual 2-ohm voice coils, letting you wire it for 1-ohm or 4-ohm loads depending on your amplifier goals. That means you can tune your system for maximum output or better balance without being locked into one configuration. With CEA-2031 rated power handling, it is built for consistent long-term performance, so you can push your system confidently without worrying about reliability dropping off over time.
The P3SD2-8 uses expanded cone efficiency technology with a VAST surround design that increases radiating area without increasing physical size. That translates into stronger bass output from a compact 8 inch form factor. The FlexFit basket also makes installation easier by allowing fine adjustment for a clean, secure fit in your enclosure. Whether you are going sealed for tight accuracy or ported for more output, this sub adapts cleanly to your build style.
Engineered for real-world audio systems, this subwoofer is designed to maintain stable performance under sustained use while keeping distortion low even at higher volumes. The reinforced aluminum trim ring adds protection and a clean finished look, while the optimized enclosure options let you choose between tight sealed bass or more aggressive vented output tuned for extra punch. With shallow depth design, flexible wiring, and strong build quality, it is a compact sub that still delivers a full-size bass experience.
