DOWN4SOUND
Down4Sound offers high-performance car audio products including amplifiers, subwoofers, speakers, DSPs, batteries, wiring accessories, and installation gear.
Built for daily drivers, demo vehicles, marine systems, and competition audio builds, Down4Sound gives enthusiasts the core products needed to build louder, cleaner, and more reliable car audio systems.
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DOWN4SOUND | PRO-FAB - BIRCH - 4X 8-INCH PORTED SUBWOOFER ENCLOSURE - 99-07 GM/CHEVY EXTENDED CAB - 2.5-INCH SEAT LIFT REQUIRED
DOWN4SOUND
MSRP: ¥4,029.35¥3,156.31Tailored 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...TD4S-PFB-GM9907-488SLMSRP: ¥4,029.35¥3,156.31 -
DOWN4SOUND | PRO-FAB - BIRCH - 4X 8-INCH PORTED SUBWOOFER ENCLOSURE - 19+ GM/CHEVY CREW CAB - 2.5-INCH SEAT LIFT REQUIRED
DOWN4SOUND
MSRP: ¥4,365.14¥2,954.84Designed 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...TD4S-PFB-GM1924-488SLMSRP: ¥4,365.14¥2,954.84 -
DOWN4SOUND | PRO-FAB - BIRCH - 4X 8-INCH PORTED SUBWOOFER ENCLOSURE - 19+ GM/CHEVY CREW CAB - UNDER SEAT - NO LIFT
DOWN4SOUND
MSRP: ¥4,365.14¥2,954.84Engineered 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...TD4S-PFB-GM1924-488NLMSRP: ¥4,365.14¥2,954.84Qty in Cart: 0Quantity:Price:MSRP: ¥4,365.14¥2,954.84Subtotal: -
DOWN4SOUND | ALUMINUM BASS KNOB - TEAL
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-TLMSRP: ¥537.19¥268.56 -
DOWN4SOUND | ALUMINUM BASS KNOB - WHITE GLOSS
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-WHMSRP: ¥537.19¥268.56Qty in Cart: 0Quantity:Price:MSRP: ¥537.19¥268.56Subtotal: -
DOWN4SOUND | ALUMINUM BASS KNOB - TITANIUM
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-TIMSRP: ¥537.19¥268.56Qty in Cart: 0Quantity:Price:MSRP: ¥537.19¥268.56Subtotal: -
DOWN4SOUND | ALUMINUM BASS KNOB - RED
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-RDMSRP: ¥537.19¥268.56 -
DOWN4SOUND | ALUMINIUM BASS KNOB - PURPLE
DOWN4SOUND
MSRP: ¥470.03¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-PUMSRP: ¥470.03¥268.56 -
DOWN4SOUND | ALUMINIUM BASS KNOB - ORANGE
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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...D4S-BASS-KNOB-ORMSRP: ¥537.19¥268.56 -
MSRP: ¥537.19¥268.56 -
MSRP: ¥537.19¥268.56 -
DOWN4SOUND | ALUMINUM BASS KNOB - BLACK
DOWN4SOUND
MSRP: ¥537.19¥268.56DOWN4SOUND 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"...D4S-BASS-KNOB-BKMSRP: ¥537.19¥268.56Qty in Cart: 0Quantity:Price:MSRP: ¥537.19¥268.56Subtotal: