4-Channel Full Range Class D Amplifier

Elevate your system with the Diamond Audio DES Series 4-Channel Full Range Class D Amplifier, engineered for audiophiles who demand clean power, precision control, and dynamic performance. As part of the flagship Diamond Elite DES Series, this amplifier delivers premium sound quality, installation flexibility, and consistent power across all impedance levels.

Built with advanced Class D digital amplifier technology, the Diamond Audio 4-channel amplifier produces 170W RMS x 4 at 2 ohms and 140W RMS x 4 at 4 ohms, with the ability to bridge into 400W x 2 at 4 ohms. This versatile configuration makes it ideal for powering component speakers, coaxial speakers, or bridging channels for subwoofer applications, delivering rich, detailed sound across the full frequency range.

Engineered using the latest digital chipset and full PWM power supply, the DES Series amplifier ensures efficient operation with minimal distortion. With THD as low as 0.07% and a signal-to-noise ratio up to -97.4dBA, this amplifier delivers clean, accurate audio reproduction for high-end systems.

Fine-tune your system with variable high-pass and low-pass crossover controls (35Hz–350Hz), allowing precise tuning for optimal speaker performance and sound staging. The Diamond Audio DES amplifier also features balanced differential inputs for noise-free signal transmission and a high damping factor (>250) for improved speaker control and tighter response.

Designed for seamless integration, this full-range Class D amplifier includes multiple auto turn-on options (VOX, DC offset, and REM), ensuring compatibility with both factory and aftermarket head units. Built-in short circuit, thermal, and voltage protection ensures long-lasting durability and system safety.

Key Features

• 4-channel full range Class D amplifier
• 170W x 4 @ 2Ω / 140W x 4 @ 4Ω / 400W x 2 bridged
• Diamond Elite DES Series flagship performance
• Advanced digital chipset with full PWM power supply
• Variable HPF/LPF crossover controls (35Hz–350Hz)
• VOX / DC / REM auto turn-on options
• Balanced differential inputs for clean signal
• High damping factor for precise speaker control
• Compact, premium design for easy installation

The Diamond Audio DES Series 4-Channel Amplifier delivers powerful, refined, and distortion-free performance, making it the ideal solution for high-end car audio systems seeking superior clarity, control, and output.