Power amplifier 4-channel 300W/ch 70/100V Class-D 2U - AUDIOPHONY PA AMP4300

The Audiophony PA AMP4300 is a 4-channel Class-D power amplifier delivering 300 W/CH for 70/100 V lines and medium- to large-scale distributed sound systems. It is designed for multi-zone installations where each area needs independent level management together with power and reliability. Class-D technology provides stable output with limited heat generation, distortion below 0.05% and a signal-to-noise ratio above 100 dB.

Thermally controlled ventilation keeps operation quiet and supports long service life under prolonged load. An intelligent standby function automatically lowers consumption when no signal is present; as soon as an incoming audio signal is detected, the amplifier immediately returns to full power. Automatic standby is activated after 15 minutes without signal.

The configuration is intended for installers: every channel provides volume control and a selectable high-pass filter set to flat or 80 Hz, both accessible only from the rear panel. Euroblock terminals simplify wiring. Dedicated front-panel LEDs for each channel indicate signal, -20 dB, clip and protect, giving an immediate view of system status. All functions are housed in a robust, compact and lightweight 2U chassis weighing only 6.7 kg. User benefits include high energy efficiency, low heat generation, audio quality with very low distortion, a high signal-to-noise ratio and reduced long-term power consumption. Areas of use include shopping centres, sports complexes and public buildings.