"Power hungry" speakers


Hi folks, can you please explain to me why certain speakers so demanding with regard to amplifier power? I'm not talking about some notoriously-difficult-to-drive Apogees or some old Thiel models, but about speakers like the Sonus Faber Extrema's. These speakers do not belong to the realm of the less-than-1-Ohm-impedance-drop speakers, but need high powered amplifiers if you want to make them sing. Even 300 Watts wouldn't be enough! What is this for some ridiculous statement (or is this a fact?). What is the explanation for this phenomenon? I do not know much about physics, but I wonder what is happening with those Watts inside the speakers: will they be converted into warmth or something?
dazzdax

Showing 1 response by dazzdax

Both of you (Sean and Bemopti) mentioned the use of complex crossovers that are consuming the Watts. As far as I'm informed, the crossover in the Sonus Faber Extrema is very simple. It is in fact a design without capacitors in the signalpath. How do you explain the fact that these speakers (the Extrema's) in particular are very power hungry?