Diamond Audio 4-Channel HEX Series Full Range Class D Amplifier - HX480.4

Diamond Audio 4-Channel HEX Series Full Range Class D Amplifier - HX480.4

nleash clean, dynamic power with the Diamond Audio HX480.4 HEX Series 4-Channel Full Range Class D Amplifier, engineered for audiophiles who demand precision, efficiency, and premium sound quality. Designed with high-tolerance components and advanced circuitry, this 4-channel car audio amplifier delivers exceptional clarity and reliable performance for component speakers, coaxial speakers, and custom audio systems.

Built on advanced Class D amplifier technology, the Diamond Audio HX480.4 amplifier maximizes efficiency while minimizing heat, ensuring consistent output even during extended listening sessions. With 120W x 4 at 4 ohms, 185W x 4 at 2 ohms, and 370W x 2 bridged at 4 ohms, this high power 4-channel amplifier offers flexible configuration for full-range speakers or bridged applications.

The HX480.4 HEX Series amplifier features a 4-layer PCB board with balanced differential inputs, delivering clean, noise-free signal transmission and accurate sound reproduction. Premium audiophile-grade components and SNAP capacitors ensure precise performance and long-term reliability in demanding audio setups.

For advanced tuning, the Diamond Audio HX480.4 Class D amplifier includes fully variable high-pass and low-pass crossovers (40Hz–400Hz) with a 24dB per octave slope, along with phase control for optimized system integration. The output clip indicators and top-mounted controls make setup easy and precise, ensuring optimal performance.

Designed with a durable anodized extruded aluminum heat sink, this compact amplifier provides superior thermal management while maintaining a sleek, modern appearance. Fully concealed mounting and an illuminated logo add a premium touch to any installation.

Features

• 4-channel full range Class D amplifier
• 120W x 4  4Ω / 185W x 4  2Ω / 370W x 2 bridged
• Audiophile-grade high-tolerance components
• 4-layer PCB with balanced differential inputs
• Variable HPF / LPF crossovers (24dB slope)
• Output clip indicators and phase control
• Anodized aluminum heat sink for cooling efficiency
• Compact design with premium aesthetics

What our Experts Think

• High-performance 4-channel Class D amplifier designed to deliver powerful, efficient, and clean audio output.
• 120W x 4 RMS at 4Ω and 185W x 4 RMS at 2Ω provides plenty of power for component speakers, coaxials, and custom audio builds.
• Full-range Class D technology offers excellent efficiency with reduced heat generation for reliable long-term performance.
• Bridgeable 4-channel design allows flexible system configurations, including higher-power setups for upgraded speaker systems.
• Audiophile-grade components and 4-layer PCB construction help deliver cleaner signals and improved reliability.
• Built-in variable crossovers and phase control provide precise tuning for better system integration.
• Balanced differential inputs help reduce unwanted noise and maintain accurate sound reproduction.
• Compact aluminum heat sink design provides efficient cooling while fitting easily into custom installations.
• Ideal for enthusiasts looking to upgrade factory audio systems with stronger power, improved clarity, and professional-level tuning flexibility.

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