My setup was 2 speakers with a Marshall 1912 Preamp Marshall JMP1 and a Rocktron Power Amp 50 Watts. The two speakers gave very high volume. The bass is somewhat lacking due to the fact that this is a speaker at high volume but they stand out.
These speakers are easy to carry and a good quality / price ratio.
Connected in stereo, they are great for the scene (restaurant, bar) and for rehearsals.