1-Channel Full Range Class D Amplifier

Experience deep, controlled bass with the Diamond Audio DES Series 1-Channel Monoblock Class D Amplifier, engineered for premium car audio systems that demand precision, power, and efficiency. As part of the flagship Diamond Elite DES Series, this amplifier is designed from the ground up to deliver dynamic sound performance and optimal power at multiple impedance levels.

Built with advanced Class D digital amplifier technology, the Diamond Audio DES monoblock amplifier delivers 400W RMS at 4 ohms, 500W RMS at 2 ohms, and 500W RMS at 1 ohm, providing strong, consistent output for subwoofers in a wide range of system configurations. Its efficient design minimizes heat while maximizing output, ensuring reliable performance during extended listening sessions.

Engineered with the latest digital chipset and full PWM power supply, this high-performance monoblock amplifier offers excellent signal accuracy with low distortion (0.05% THD) and an impressive signal-to-noise ratio up to -98.9dBA, delivering clean, distortion-free bass reproduction.

Fine-tune your subwoofer system with a variable low-pass crossover (35Hz–350Hz), allowing precise control over low-frequency output. The Diamond Audio DES amplifier also features balanced differential inputs for noise-free signal transmission and a high damping factor (>250) for improved subwoofer control and tighter bass response.

Installation flexibility is enhanced with multiple auto turn-on options (VOX, DC offset, and REM), making integration seamless with both factory and aftermarket head units. Built-in short circuit, thermal, and voltage protection ensures long-term durability and safe operation.

Key Features

• 1-channel monoblock Class D amplifier
• 400W @ 4Ω / 500W @ 2Ω / 500W @ 1Ω RMS power
• Diamond Elite DES Series flagship performance
• Advanced digital chipset with full PWM power supply
• Variable low-pass crossover (35Hz–350Hz)
• VOX / DC / REM auto turn-on options
• Balanced differential inputs for clean signal
• High damping factor for tight, controlled bass
• Compact, premium design for easy installation

The Diamond Audio DES Monoblock Amplifier delivers powerful, precise, and distortion-free bass, making it the ultimate solution for high-end car audio subwoofer systems seeking superior performance and control.