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Upgrade your entire sound system with the Diamond Audio HX1200.5D HEX Series 5-Channel Full Range Class D Amplifier, engineered for audiophiles who demand clean power, efficiency, and total system control. Designed to power both speakers and a subwoofer from a single chassis, this 5-channel car amplifier delivers exceptional clarity and dynamic output across the full frequency range.
Built with advanced Class D amplifier technology, the HX1200.5D maximizes power while minimizing heat and electrical strain. Four full-range channels provide clean, distortion-free amplification for component or coaxial speakers, while the dedicated monoblock subwoofer channel delivers deep, controlled bass performance. This all-in-one design simplifies installation while maintaining high-end audio performance.
Constructed with premium, high-tolerance internal components, the HX1200.5D 5-channel amplifier features adjustable crossovers, precise tuning controls, and flexible configuration options to optimize your entire system. Whether upgrading a factory setup or building a custom car audio system, this HEX Series amplifier ensures balanced sound staging, tight bass response, and crystal-clear detail.
Compact yet powerful, the HX1200.5D integrates easily into cars, trucks, and SUVs, making it ideal for space-conscious installs without sacrificing output capability.
For enthusiasts seeking a powerful, efficient, and precision-engineered 5-channel Class D amplifier, the Diamond Audio HX1200.5D delivers premium sound quality and complete system performance in one streamlined solution.
RMS Power (4 ohm ): 100 W X 4 /480 X 1 RMS Power (2 ohm ): 150 W X 4 /800 X 1 Bridged (mono 4 ohm ): 480 W X 1(Sub Output) Bridged (mono 2 ohm ): 800 W X 1(Sub Output) Bridged (stereo 4 ohm ): 300 W X 2 (4 ohm ) / 800 X 1(2 ohm ) Power Supply: Full PWM Power Supply Threshold: 10.0V-17.0V (DC) Idle Current: (0.7A) THD 4 (1KHz @4 ohm ): 0.06% S/N Ratio (A weighted @1W): -80dBA S/N Ratio (A weighted @FP): -95dBA Low Input Level: 200mV-5.0V High Input Level: N/A Low Input Level: 20 K ohm High Input Level: N/A Output Impedance: 0.0297 ohm Damping Factor (50Hz @ 4 ohm ): >250 Bandwidth (-3dB): 10Hz-35KHz Variable High-Pass: 40Hz - 400Hz (-12dB Ch 1/2/3/4) Variable Low-Pass: 30Hz - 300Hz (-12dB Ch 5) Variable Sub-Sonic: 10-55Hz@18Db ATC: 40A x 3 L x W x H: 14.25"x 7.67"x 2" (362mm x 195mm x 51.5mm) Tech Support:
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.

