High resistance, low weight, low height (2 U) and the integrated switching power supply: these are the advantages of the PSSO DDA and QDA Class D power amplifiers. The amplifiers also have a limiter and loudspeaker switch-on delay as well as 3 adjustable operating modes (stereo, parallel, bridge).

The robust steel housing contains LEDVU meters for each channel and LEDs for Protect, Clip and Signal. The highly efficient air flow from front to rear and the temperature-controlled fans prevent thermal problems during operation.