SDSP4.6ABT1 Digital Signal Processor | Wireless, 10-Ch Output, 31-Band EQ, 192kHz SPDIF Input

Introducing the Cadence SDSP4.6ABT1, a game-changing 31-band DSP car amplifier that transforms car audio.This amplifier delivers superior sound upgrades with advanced technology.

Featuring a 31-band high-power DSP amplifier and a Japan pioneer PA2032 amplifier for exceptional audio quality and stability.Crafted with precision using Siemens Hi-Fi capacitors, copper toroidal inductors, and 6 RCA interfaces for premium audio.

Customize your sound with the 31-band EQ accessible via smartphone, tablet or laptop.Elevate your driving experience with the Cadence SDSP4.6ABT1!

PRODUCT FEATURES

• Compact, Wireless, Android, and Apple APP available
  Smartphone, tablet, and laptop enabled.
• 31-band EQ for smartphone, tablet / laptop
  Easily adjust sound to fit personal preferences.
• Wireless Playback
  Enjoy high-quality music wirelessly for unrestricted listening.
• Independent adjustment and frequency cutting for 5.1 channels
  Create an excellent soundstage for an immersive experience.
• Active subwoofer output adjustment
  Independently adjust for precise bass control, enhancing audio performance.
• Patented AE audio algorithm
  Exquisitely present every note for more realistic and moving sound quality.
• Optical (SPDIF) input
  Maintain high-definition audio transmission for superb sound effects.
• Advanced DF clarity enhancement technology
  Make vocals more lifelike, with clear and bright highs.
• Japan Pioneer Hi-Fi Amp IC PA2032A
  Deliver stable power output, rich details, and deep musical insight.
• Built-in Class AB Amplifier with 4 High-Level Outputs
  RMS 4 x 20W / MAX 4 x 60W, providing direct power to speakers without an external amplifier.
• NJM4580 operational amplifier chip
  High-performance audio processing, enhancing music quality.
• Hi-Fi grade configuration
  Siemens Hi-Fi capacitors, pure copper toroidal inductors providing luxurious audio enjoyment.
• Laptop Software Available
  Tune and customize audio settings with PC software.
• LCD Remote Controller (Optional)
  External display controller for real-time adjustments.

Download the Cadence SDSP4.6ABT1 User Manual for full specifications, setup instructions, and advanced tuning guidelines.

Download User Manual (PDF)

Download Application and Software

Where Art Meets Engineering

Crafted for those who believe that performance should be as beautiful as it is powerful, the Cadence SDSP4.6ABT1 redefines what a car DSP can look like.
Its jet-black aluminum housing features a fine brushed texture, creating a tactile surface that’s as refined as a luxury timepiece.
The bold orange-and-white visual language—composed of precision-angled stripes and a dynamic dot-matrix gradient—instantly commands attention while echoing the DSP’s digital precision.

Along its flanks, three-tiered heat dissipation fins give the unit a striking, architectural silhouette while ensuring stable thermal performance.
From every angle, the SDSP4.6ABT1 balances minimalism with muscle—a device designed to stand out, yet feel at home in any premium audio build.

At the center sits the Cadence emblem, symbolizing decades of dedication to sonic excellence.
This is not merely a component—it’s a visual and acoustic centerpiece. Whether on display or tucked discreetly in your install, the SDSP4.6ABT1 brings a new dimension of sophistication to the art of car audio.

Versatile Inputs for Seamless Integration

True audio flexibility starts with uncompromising connectivity.
The SDSP4.6ABT1 is engineered to adapt effortlessly to a wide range of vehicle setups, thanks to its comprehensive input interface.
Onboard you’ll find dedicated AUX stereo RCA inputs for clean signal routing, as well as 4 high-level input channels—ideal for direct integration with factory head units.

A secure USB Type-B (PC) port offers fast wired tuning access, while the REMOTE RJ45 terminal connects seamlessly to the included external controller.
The large multi-pin input harness ensures tidy, reliable connections during installation, whether you’re building from stock or going fully custom.

With every detail designed for installers and audiophiles alike, the SDSP4.6ABT1 delivers effortless compatibility, minimal noise, and maximum signal fidelity—right from the source.

Engineered for Expansive Audio Architectures

Precision audio systems demand precise output control—and the SDSP4.6ABT1 delivers.
With 10 output channels (4 High-Level + 6 RCA), this DSP allows for finely tuned multi-amplifier setups, active crossovers, and complex staging configurations.

Whether you’re powering a 3-way front stage, driving multiple subwoofer zones, or blending analog and digital components, the SDSP4.6ABT1 adapts to your vision.
In addition to 6 RCA outputs, the SDSP4.6ABT1 features 4 High-Level outputs, allowing seamless integration with factory systems or additional amplification. An integrated optical (SPDIF) output provides pristine digital signal transfer for ultra-low noise applications, while the USB-A interface supports firmware updates and future expandability.

Everything about the output stage is designed to inspire system builders: clean layout, robust terminals, and zero-compromise signal clarity.
This is not just about more channels—it’s about more control, purity, and possibility.

Touch, Turn, Tune — Instinctive Audio Control

Power means nothing without control. That’s why the SDSP4.6ABT1 supports an optional premium external controller, bringing your entire audio system to your fingertips.
Housed in a sleek brushed enclosure, the controller features a crystal-clear display, tactile shortcut buttons, and a precision-machined aluminum control dial—engineered for smooth, satisfying rotation.

Navigate EQ presets, volume levels, or system modes in real time, without needing a laptop or app.
When installed, its RJ45 direct connection ensures stable responsiveness and zero lag, whether you’re making subtle tweaks on the road or performing a full retune mid-install.

From the first click to the final adjustment, the interface feels less like a tool—and more like an extension of your musical instinct.
Because sometimes, the best tuning happens by feel.

Precision, Power, and the Pursuit of Pure Sound

At the heart of the SDSP4.6ABT1 lies a finely engineered architecture built to reveal every nuance of your music.
Driven by the renowned Japan Pioneer PA2032 amplifier IC and the high-performance NJM4580 operational amplifier chip, this DSP delivers signal processing that is both powerful and precise.

With a stunning 192kHz sampling rate and an ultra-low 0.01% distortion level, it faithfully reproduces the texture, dynamics, and spatial cues that turn sound into emotion.
The 108dB signal-to-noise ratio ensures absolute clarity—even in the quietest passages.

Complemented by Siemens Hi-Fi capacitors and pure copper toroidal inductors, the SDSP4.6ABT1’s internal components are meticulously selected for audiophile-grade performance.
This is more than technical excellence—it’s the soul of your system, engineered to move you.

Because Every Note Deserves to Be Heard—Perfectly

The Cadence SDSP4.6ABT1 is not merely a tool for tuning—it’s a statement of sonic intent.
Crafted for those who won’t settle for “good enough,” it brings the full depth, dimension, and detail of studio-grade sound into your everyday drive.

Whether you’re building a competition-level system or simply want to rediscover the beauty in your favorite tracks, this DSP delivers with grace, precision, and undeniable authority.

It’s time to let your music breathe—to live, to move, to inspire.
Elevate your system. Upgrade your journey. Experience Cadence.