PSSO QCA-10000 MK2 4-channel SMPS Amplifier4 channel PA Amplifiers with Integrated SMPS The 4 channel PA amplifiers of the QCA series offer ultra high output power paired with a low weight and small overall height. The amplifiers use a patented second generation Class I output circuitry which combines the high efficiency off Class D and the sound quality of Class A. Featuring a modern switch mode power supply, the amplifiers provide up to 10 kW peak power and weigh less than 14 kg. This makes