Excellent for stage footbath powerful and cheap.
Very sturdy (you can climb on it, it does not move and does not tip!).
Speakers coaxial which is interesting because the bass and treble from the same point.
Amplified system, which is convenient, no need to amp, you ask, you plug the 220 V, we connect the audio cable and it's ready.
As a result, very flexible to use, no-brainer compared to the impedances of the amplifiers, we can add back all you want (with the Link card, we can chain several of the same audio output).
Different presets are also available to give priority to voice or guitar feedback or piano or drum with noise gate or filter Larcen.
Bof! ... Not very persuasive. I picked one (the more neutral to my ear) and I do not move.
There are a few blows but it is audible only at very low volume, which is not the vocation of a back foot bath!