We are a Ground Shaker authorized dealer, so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
Designed for serious bass, this 8" quad-ported sub box delivers deep, resonant low-end with a 38 Hz tuning frequency and 2.50 ft³ total air volume. Its 7 1/8" cutout diameter (custom sizes available) and 1-slot port with a 30 in² area ensure tight, controlled bass that fills your Silverado cabin. Weighing 57 lbs with a 7 1/4" mounting depth and a 1 1/4" front baffle, it’s built for a secure, high-performance under-seat installation.
With a front height of 9 3/4 inches and a rear height of 6 1/2 inches, this sub box slides neatly under your Silverado’s rear seat for a clean, low-profile installation. Its 53" length maximizes internal volume for deeper, fuller bass performance. A 17" depth provides stability and durability, ensuring a secure, long-lasting setup for powerful, forward-firing sound.
Crafted from 5/8" high-quality MDF wood, this sub box is built for strength and long-lasting performance, even under intense bass loads. It’s carpeted with a durable trunk liner finish and sealed with high-quality Titebond silicone and wood glue for a vibration-free, airtight enclosure. Four spring-loaded terminals provide secure, easy connections for a professional-grade, high-output audio setup.
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We are a Ground Shaker authorized dealer, so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
Designed for serious bass, this 8" quad-ported sub box delivers deep, resonant low-end with a 38 Hz tuning frequency and 2.50 ft³ total air volume. Its 7 1/8" cutout diameter (custom sizes available) and 1-slot port with a 30 in² area ensure tight, controlled bass that fills your Silverado cabin. Weighing 57 lbs with a 7 1/4" mounting depth and a 1 1/4" front baffle, it’s built for a secure, high-performance under-seat installation.
With a front height of 9 3/4 inches and a rear height of 6 1/2 inches, this sub box slides neatly under your Silverado’s rear seat for a clean, low-profile installation. Its 53" length maximizes internal volume for deeper, fuller bass performance. A 17" depth provides stability and durability, ensuring a secure, long-lasting setup for powerful, forward-firing sound.
Crafted from 5/8" high-quality MDF wood, this sub box is built for strength and long-lasting performance, even under intense bass loads. It’s carpeted with a durable trunk liner finish and sealed with high-quality Titebond silicone and wood glue for a vibration-free, airtight enclosure. Four spring-loaded terminals provide secure, easy connections for a professional-grade, high-output audio setup.
