I have a set of working stereo speakers in storage. Can I use them again – out on the terrace, for instance – without an extra amplifier?

Yes. devil's REARSTATION makes it possible to enjoy your music sources anywhere without needing an additional receiver or amplifier. The wireless transmitter/receiver system has a built-in 2 x 30 watt RMS amplifier.

The station functions as a "stereo amplifier system" or a "wireless expansion set" – it can supply practically any passive loudspeaker (without its own amplifier) with wireless audio signals.