Tailored for the 1999-2007 GM/Chevy Extended Cab, this Down4Sound PRO-FAB enclosure is designed for serious bass enthusiasts. Featuring four 8-inch subwoofer openings, it delivers precision-tuned bass output with a tuning frequency of 32.5 Hz. Crafted...

Designed for the 2019+ GM/Chevy Crew Cab, this Down4Sound PRO-FAB enclosure is tailored for audio enthusiasts seeking deep, powerful bass. Featuring four 8-inch subwoofer openings, it is precision-tuned to 32.5 Hz to ensure excellent sound performance...

Engineered for the 2019+ GM/Chevy Crew Cab, the Down4Sound PRO-FAB enclosure is designed to deliver powerful and precise bass. With four 8-inch subwoofer openings, this enclosure fits seamlessly under the rear seat without the need for a seat lift...

Introducing the Down4Sound JP63 BLACK GLOSS, a monoblock amplifier that goes beyond the ordinary with a jaw-dropping 6300W RMS. This isn't just another 6000W amp; it's a bass powerhouse engineered for those who demand nothing less than earth-shattering,...

Meet the Down4Sound JP33, a monoblock amplifier that doesn't just stop at 3300W RMS—it goes beyond. This isn't your run-of-the-mill 3000W amp; it's a powerhouse designed for bass enthusiasts who crave ground-shaking, thunderous bass from their...

The all-new 2025 Sundown SA speaker series has been designed to make a statement. What statement, you may ask? That Sundown Audio can be just as serious about SQ as we are about SPL. Many people already know this but our subwoofers – even the...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...

DOWN4SOUND Universal Aluminum Bass Knob – Premium-Grade Hardware and RCA Connections, Compatible with Most Bass Amplifiers and Fully Compatible with All Down4Sound Amplifiers. Dimensions 2.5" x 1.25" x 1.25" Clickable Potentiometer Rca cable...