Black Diamond Dia-K4 4-Channel Car Amplifier – 2000W Max, 150W RMS x4 @ 4Ω

Elevate Your Car Audio with Dia-K4

Meet the Black Diamond Dia-K4, a high-performance 4-channel car amplifier designed to expand your sound system with power, clarity, and room to grow. Delivering up to 2000 watts peak and 150W RMS per channel at 4Ω, it accommodates a variety of speaker configurations—from crisp component sets to full-range installations—without compromising reliability or control.

The Dia-K4 is built to stay clean and dynamic across the full audio spectrum. With a wide 20 Hz to 40 kHz range and a signal-to-noise ratio of ≥80 dB, you’ll hear more detail and less unwanted noise, making every drive feel more immersive and engaging.

Key Power, Clarity, and Versatility

• A total power capability of up to 2000W, enabling flexible system design and expansion
• Per-channel 150W RMS into 4Ω loads for robust midrange, highs, and full-range playback
• Broad frequency coverage (20 Hz – 40 kHz) for tight bass, clear mids, and sparkling highs
• High signal-to-noise ratio (≥80 dB) minimizes distortion for cleaner listening
• Multiple tuning options: selectable high-pass, low-pass, and full-range filters
• 0–12 dB bass boost to add impact where you want it
• Protective circuitry guards against overload, thermal stress, short circuits, and voltage fluctuations
• Full-range Class AB design balances efficiency with dependable power delivery

Tuning, Integration, and Real-World Use

Designed for real-world installs, the Dia-K4 gives you precise control over your sound profile. The HPF/LPF options make it easy to tailor each channel to your speakers, while the bass boost is a practical tool for bass enthusiasts seeking extra punch without distortion.

Use cases include upgrading an existing factory or aftermarket system, powering multiple speaker zones, or bridging scenarios where a versatile four-channel amp is preferred. The result is a deeper, more controlled listening experience in any driving situation.

Reliability You Can Trust

Durable construction and built-in protections help ensure stable performance in the car environment. The Dia-K4’s rugged design supports long listening sessions at higher volumes while maintaining sound quality and system integrity.