Models CA2500, CA4250, CA6160 and CA8125 are all capable of delivering 1 kW of audio power. In high impedance (70/100V-line) mode, this maximum power rating can be shared between channels in an intelligent manner, allowing the amplifiers to drive different types or numbers of loudspeakers
in the various areas of a building or venue with maximum economy.

Particular design attention has been paid to the amplifiers’ energy efficiency. The Class D output stages dispense with line output transformers, and consequently offer great savings in weight and size over earlier designs. An automatic, two-stage power-down feature (APD) resulting in power consumption of less than 2.5 W. The amplifiers also include a remote standby/wake up function, enabling them to be placed into standby mode – and subsequently powered up again – by a simple external contact closure. The APD feature can be disabled by a rear panel DIP switch.

Safety features of the design include output DC detection, overcurrent protection, and thermal monitoring. A switch on delay provides loudspeaker protection at power-up. All models use variable–speed forced-air cooling.