DOWN4SOUND
Shop Down4Sound car audio amplifiers engineered for clean power, strong output, and reliable performance in daily driver, sound quality, SPL, and high-output car audio systems. Browse Down4Sound monoblock amps, multi-channel amplifiers, full-range amps, compact amplifier solutions, and JP Series amp models built for subwoofers, door speakers, mids, highs, and complete custom audio builds.
Whether you are upgrading a factory system, powering a bass setup, building a louder front stage, or designing a full Down4Sound system, compare car audio amp models by RMS power, channel configuration, impedance, footprint, and application to find the right Down4Sound amp for your vehicle, power goals, and installation needs.
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DOWN4SOUND | JP63 BLACK GLOSS | 6300W RMS AMPLIFIER
DOWN4SOUND
¥110,489 - ¥127,062Introducing 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,...JP63-BKG-¥110,489 - ¥127,062Qty in Cart: 0Quantity:Price:¥110,489 - ¥127,062Subtotal: -
DOWN4SOUND | ALUMINUM BASS KNOB - TEAL
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINUM BASS KNOB - WHITE GLOSS
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINUM BASS KNOB - TITANIUM
DOWN4SOUND
MSRP: ¥8,838¥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-TIMSRP: ¥8,838¥4,419Qty in Cart: 0Quantity:Price:MSRP: ¥8,838¥4,419Subtotal: -
DOWN4SOUND | ALUMINUM BASS KNOB - RED
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINIUM BASS KNOB - PURPLE
DOWN4SOUND
MSRP: ¥7,733¥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: ¥7,733¥4,419 -
DOWN4SOUND | ALUMINIUM BASS KNOB - ORANGE
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINIUM BASS KNOB - GREEN
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINUM BASS KNOB - BLUE
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419 -
DOWN4SOUND | ALUMINUM BASS KNOB - BLACK
DOWN4SOUND
MSRP: ¥8,838¥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: ¥8,838¥4,419Qty in Cart: 0Quantity:Price:MSRP: ¥8,838¥4,419Subtotal: -
DOWN4SOUND | JP43 BLACK GLOSS | 4300W RMS AMPLIFIER
DOWN4SOUND
¥85,629 - ¥97,782Introducing 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-¥85,629 - ¥97,782Qty in Cart: 0Quantity:Price:¥85,629 - ¥97,782Subtotal: -
DOWN4SOUND | JP34 AB WHITE GLOSS | 590W RMS | 4 CHANNEL AMPLIFIER
DOWN4SOUND
¥30,936 - ¥36,460Introducing the JP 34 WHITE GLOSS CLASS AB Amplifier: A Robust 590W RMS 4-Channel Powerhouse The much-anticipated JP34AB WHITE GLOSS has made its triumphant return, now more refined and powerful than before. This Class AB amplifier stands out not just...JP34AB-WHG-¥30,936 - ¥36,460