The active models of the series – indicated by the “A” in the name – are equipped with a powerful Class-D amplifier with DSP. This provides, among other things, a multiband compressor, limiter, EQ, delay and various presets for different applications. For modern setups, a Bluetooth interface including stereo link is also integrated. This allows two speakers to be wirelessly connected as a stereo system. Operation is conveniently handled via an LCD display. All models operate without fans thanks to passive cooling, which makes them particularly low-maintenance and silent. Robust handles and flexible mounting options make transport and setup easier.