Class-D power amplifier 1U 2x450W/4Ω stereo/bridge - HPA MSC-HPADA600

HPA DA-600 is a Class-D power amplifier housed in a standard 1U rack format. Its two channels provide 2 x 300 WRMS into 8 ohms or 2 x 450 WRMS into 4 ohms, while mono bridged operation raises the output to 900 WRMS into 8 ohms. With a damping factor greater than 200, the amplifier maintains effective loudspeaker control for clear, detailed reproduction in PA applications and events.

Input impedance is 20 kohms in balanced mode and 10 kohms in unbalanced mode, while input sensitivity is 1 V. The connection panel provides XLR/jack inputs and speakON outputs together with screw terminals and banana terminals, supporting reliable connections to other professional audio equipment. An accessible switch changes between stereo and bridge operation, allowing the amplifier to suit different setups.

The source also identifies the connection section with the designation HPA AM-1100, whereas the product model in the listing is HPA DA-600. Electronic, thermal, and electrical protection are included, as are fan cooling and soft start. The signal-to-noise ratio is 100 dB and THD is 0.1% at 1 kHz, giving little noise or distortion at high output levels.

Frequency response covers 20 Hz to 20 kHz within ±0.5 dB, preserving fidelity from deep bass to crystal-clear highs. The unit measures 48.2 x 4.4 x 20.4 cm and has a net weight of 2 kg.