Ah this brings back memories. Of course Hell is correct, speakers present an inductive reactance so we shouldn't think in terms of ohms but impedance for speakers. In addition in AC circuits with reactive loads we should not think in terms of watts but VA (Volt Amps) or apparent power.

I remember many, many, many moons ago when I had a teacher make us do a lab where this little capacitor was apparently sinking something like 100 watts. The class all came up with the answer and the the prof laughed and opened our eyes to impedance.

For every expert, there is an equal and opposite expert.