Diamond Audio 2-Channel HEX Series Full Range Class D Amplifier - HX400.2
Experience precision-engineered performance with the Diamond Audio HX400.2 HEX Series 2-Channel Full Range Class D Amplifier, designed for audiophiles who demand clean power, dynamic response, and superior sound clarity. Built with premium components and advanced engineering, this 2-channel car audio amplifier delivers high-end performance for component speakers, coaxial speakers, and subwoofer applications.
Powered by full-range Class D amplifier technology, the Diamond Audio HX400.2 amplifier provides outstanding efficiency while minimizing heat and maximizing output. With 200W x 2 at 4 ohms, 350W x 2 at 2 ohms, and 700W x 1 bridged at 4 ohms, this high power 2-channel amplifier offers the flexibility to power full-range speakers or bridge channels for increased subwoofer performance.
Engineered for accuracy, the HX400.2 HEX Series amplifier features a 4-layer PCB board with balanced differential inputs, ensuring noise-free signal transmission and exceptional audio clarity. Audiophile-grade components, including high-tolerance circuitry and SNAP capacitors, contribute to precise sound reproduction and reliable long-term performance.
The Diamond Audio HX400.2 Class D amplifier includes fully variable high-pass and low-pass crossovers (40Hzâ400Hz) with a 24dB per octave slope, allowing precise tuning for optimal system performance. Additional features such as output clip indicators, phase control, and top-mounted controls make system setup simple and accurate.
Built with a durable anodized extruded aluminum heat sink, this compact amplifier offers superior thermal management while maintaining a sleek and modern design. The fully concealed mounting and illuminated logo add a premium aesthetic to any installation.
The Diamond Audio HX400.2 HEX Series Amplifier delivers refined, powerful, and distortion-free sound, making it the perfect choice for high-end car audio systems seeking precision and performance.
Features
⢠2-channel full range Class D amplifier
⢠200W x 2 @ 4Ί / 350W x 2 @ 2Ί / 700W x 1 bridged
⢠Audiophile-grade components and high-tolerance design
⢠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
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Q&A
Q: What is the Diamond Audio HX400.2 designed for?
A: It is a 2-channel full-range Class D amplifier designed to power speakers with clean, efficient audio performance.
Q: What are the benefits of Class D technology?
A: Class D amplification provides high efficiency, lower heat output, and strong power delivery in a compact design.
Q: Can the HX400.2 power multiple speakers?
A: Yes. Its 2-channel design is ideal for powering front or rear speakers in car, motorcycle, and powersports audio systems.
Q: Does it have adjustable tuning controls?
A: Yes. It includes adjustable gain and crossover controls to help optimize sound quality for your system.
Q: Is the HX400.2 good for audio upgrades?
A: Yes. Its compact size and reliable full-range output make it a great choice for factory audio upgrades and custom installations.
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Maintenance Tips
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