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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On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - TEAL
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-TLMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - WHITE GLOSS
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-WHMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - TITANIUM
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-TIMSRP: ¥8,838Now: ¥3,756Was: ¥4,419Qty in Cart: 0Quantity:Price:MSRP: ¥8,838Now: ¥3,756Was: ¥4,419Subtotal: -
On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - RED
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-RDMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINIUM BASS KNOB - PURPLE
DOWN4SOUND
MSRP: ¥7,733Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-PUMSRP: ¥7,733Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINIUM BASS KNOB - ORANGE
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-ORMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINIUM BASS KNOB - GREEN
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-GRMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - BLUE
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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...D4S-BASS-KNOB-BLMSRP: ¥8,838Now: ¥3,756Was: ¥4,419 -
On Sale
DOWN4SOUND | ALUMINUM BASS KNOB - BLACK
DOWN4SOUND
MSRP: ¥8,838Now: ¥3,756Was: ¥4,419DOWN4SOUND 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" Rca cable lengths for Input / Output...D4S-BASS-KNOB-BKMSRP: ¥8,838Now: ¥3,756Was: ¥4,419Qty in Cart: 0Quantity:Price:MSRP: ¥8,838Now: ¥3,756Was: ¥4,419Subtotal: -
On Sale
DOWN4SOUND | JP43 BLACK GLOSS | 4300W RMS AMPLIFIER
DOWN4SOUND
¥72,785 - ¥84,937Introducing the Down4Sound JP43, a monoblock amplifier that delivers a staggering 4300W RMS—and that's just the beginning. Engineered for bass aficionados, this is not your average 4000W amp. It's a sonic juggernaut designed to unleash monstrous,...JP43-BKG-¥72,785 - ¥84,937 -
On Sale
DOWN4SOUND | PRO-FAB DIY 10 - SINGLE 10-INCH PORTED SUBWOOFER ENCLOSURE
DOWN4SOUND
MSRP: ¥22,097Now: ¥15,026Was: ¥17,677Build your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Single 10, a DIY ported sub box designed for audio enthusiasts and DIY lovers. This flat pack includes pre-cut birch panels, precision-engineered to deliver...DIY-PFB-BIRCH-10PMSRP: ¥22,097Now: ¥15,026Was: ¥17,677Qty in Cart: 0Quantity:Price:MSRP: ¥22,097Now: ¥15,026Was: ¥17,677Subtotal: -
On Sale
DOWN4SOUND | PRO-FAB BIRCH FLAT PACK DUAL 2 6.5 | DIY PORTED SUBWOOFER ENCLOSURE BOX
DOWN4SOUND
MSRP: ¥22,097Now: ¥15,026Was: ¥17,677Create your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Dual 6.5, a DIY ported sub box crafted for exceptional sound quality and custom car audio projects. Designed for dual 6.5-inch subwoofers, this kit features...DIY-PFB-BIRCH-265PMSRP: ¥22,097Now: ¥15,026Was: ¥17,677