DC Audio 4.0K Competition Series Amplifier – 4,000 Watt Monoblock

Serious Power. Competition Performance. DC Audio Engineering.

When it comes to building a high-performance car audio system, power, reliability, and control make all the difference. The DC Audio 4.0K Competition Series Amplifier delivers the performance serious bass enthusiasts and competitors demand. Engineered to produce 4,000 watts RMS at 1 ohm, this high-output monoblock amplifier is built to drive powerful subwoofer systems with authority.

Whether you're building a daily-driven bass machine, competing in SPL competitions, or putting together a serious high-powered subwoofer setup, the DC Audio 4.0K provides the power and flexibility to take your system to the next level.

Get On Our Level.

4,000 Watts RMS of Pure Bass Power

The DC Audio 4.0K is designed to deliver massive output while maintaining precise control over your subwoofers. Rated at 4,000 watts RMS at 1 ohm and 14.4 volts, this competition-grade amplifier can produce up to 4,400 watts RMS at 16.2 volts.

Need even more power? The DC Audio 4.0K features master/slave linking capabilities, allowing two amplifiers to be strapped together for up to 8,800 watts RMS at 2 ohms and 16.2 volts.

This makes the 4.0K an excellent choice for high-powered DC Audio subwoofers, custom SPL builds, and competition-level car audio installations.

Built for High-Power Car Audio Systems

Every detail of the DC Audio 4.0K is designed with serious audio enthusiasts in mind.

Dual 1/0 AWG Power and Ground Inputs

High-powered amplifiers demand a strong electrical foundation. The DC Audio 4.0K features dual 1/0 AWG power and ground connections to accommodate the heavy-duty wiring needed for high-current car audio systems.

1 Ohm Stable Performance

Designed for demanding subwoofer applications, the DC Audio 4.0K operates at 1 ohm in standalone mode, allowing you to get maximum performance from your subwoofer configuration.

Strappable for Extreme Output

Need more than 4,000 watts? Link two DC Audio 4.0K amplifiers together using the master/slave configuration to create a high-output system capable of delivering up to 8,800 watts RMS.

Wired Bass Remote with Clipping Indicator

Take control of your bass from the driver's seat. The included wired bass remote allows convenient adjustment of your system's bass level while the integrated clipping indicator helps you identify when the amplifier is being pushed beyond clean output.

Advanced Sound Tuning

Fine-tune your subwoofer system with adjustable low-pass and subsonic filters, variable bass boost, and phase adjustment. These controls allow you to optimize amplifier performance for your enclosure, subwoofers, and listening preferences.

Premium Tiffany-Style RCA Connections

High-quality Tiffany-style RCA input connections and RCA pass-through outputs provide convenient signal connectivity for complex car audio systems.

Output Power Ratings (RMS)

Single Amplifier

Linked / Strapped Amplifiers

Linked power ratings require two compatible DC Audio 4.0K amplifiers operating in a master/slave configuration.

Key Features

• 4,000 Watts RMS at 1 Ohm
• Up to 4,400 Watts RMS at 16.2V
• 1 Ohm Stable Monoblock Design
• Master/Slave Linkable for Strapped Operation
• Up to 8,800 Watts RMS When Linked
• Dual 1/0 AWG Power Inputs
• Dual 1/0 AWG Ground Inputs
• Variable Low-Pass Crossover
• Variable Subsonic Filter
• Adjustable Bass Boost
• Adjustable Phase Control
• Wired Bass Remote with Clip Indicator
• Tiffany-Style RCA Input Connections
• RCA Pass-Through Outputs
• Onboard Power, Protect, and Clip LED Indicators
• Designed for High-Power Subwoofer and SPL Applications

Complete Technical Specifications

Amplifier Dimensions

Why Choose the DC Audio 4.0K?

At DC Audio, we understand that serious bass systems require more than just impressive wattage ratings. They demand dependable power, flexible tuning, and equipment engineered for high-performance applications.

The DC Audio 4.0K Competition Amplifier brings together high-output performance, advanced tuning capabilities, and the ability to expand your system through amplifier linking.

Whether you're chasing higher SPL numbers, powering a pair of high-performance subwoofers, or building a system that makes its presence known, the DC Audio 4.0K is ready to deliver.

Don't settle for ordinary bass. Get On Our Level with DC Audio.