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Down4Sound DSP/Processors | Car Audio Equipment

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Down4Sound DSP/Processors

Down4Sound (D4S) was founded by Johnathan Price in Las Vegas in 2015, starting as an online retailer before launching their own product line in 2020. Known for the JP series amplifiers, custom vehicle-specific speaker pods, and partnerships with brands like Sundown and Deaf Bonce. Their 98 Tahoe "Neohoe" demo vehicle features a 100,000W system.

10 Products

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DOWN4SOUND EZY Rack Stack – Additional Modular Bracket Layer

The Down4Sound DOWN4SOUND EZY Rack Stack – Additional Modular Bracket Layer is a quality car audio product from Down4Sound.

DSP612

The Down4Sound DSP612 is a quality car audio product from Down4Sound.

DSP68

The Down4Sound DSP68 is a quality car audio product from Down4Sound.

ESY DSP612+ | 6-In-12 Out Digital Signal Processor

The Down4Sound ESY DSP612+ | 6-In-12 Out Digital Signal Processor is a quality car audio product from Down4Sound.

EZY DSP612+ - All-in-One Hi & LOW LEVEL Car Audio DSP 6-in-12 Out WITH APTX-HD

The Down4Sound EZY DSP612+ - All-in-One Hi & LOW LEVEL Car Audio DSP 6-in-12 Out WITH APTX-HD is a quality car audio product from Down4Sound.

EZY DSP612+ All-in-One Hi/Low Level Car DSP 6-in-12 Out

The Down4Sound EZY DSP612+ All-in-One Hi/Low Level Car DSP 6-in-12 Out is a quality car audio product from Down4Sound.

EZY DSP68+ - All-in-One Hi & LOW LEVEL Car Audio DSP 6-in-8 Out

The Down4Sound EZY DSP68+ - All-in-One Hi & LOW LEVEL Car Audio DSP 6-in-8 Out is a quality car audio product from Down4Sound.

EZY DSP68+ All-in-One Hi/Low Level DSP 6-in-8 Out

The Down4Sound EZY DSP68+ All-in-One Hi/Low Level DSP 6-in-8 Out is a quality car audio product from Down4Sound.

EZY-1216 DSP

The Down4Sound EZY-1216 DSP is a quality car audio product from Down4Sound.

XP28 DSP | 2-In/8-Out

The Down4Sound D4S-XP28 DSP is engineered for those who want total control over their system. Designed with installers and competitors in mind, the XP28 gives you 2 inputs and 8 outputs, paired with precision tuning tools that go far beyond basic processors. With a graphic and parametric EQ, limiter with threshold/attack/release, high-precision Butterworth & Linkwitz-Riley crossovers, and full delay/phase control, this DSP is built for competition-level accuracy. It even includes test tools like a frequency generator, sweep, and pink noise for professional system setup. Key Features: 2 RCA inputs / 8 RCA outputs Graphic input EQ (15 bands) + parametric EQ (per input & per output) High precision crossover: Butterworth & Linkwitz-Riley (up to 48 dB/octave) Phase inversion, alignment, delay control Limiter with threshold, attack, release adjustment Independent gain & mute per output + master volume Save & load custom tuning profiles Security password to block unauthorized changes Frequency generator, sweep, and pink noise for setup Screen saver with rotating text Tiffany RCA connectors, D4S case finish Dimensions: (est.) ~180 × 120 × 40 mm (7.08" × 4.72" × 1.57")