I would appreciate learning from present Axiom M80 owners which 4ohm rated receivers you are using to derive optimum sound from these really good speakers? Please be specific and state your reasons for choosing the A/V or stereo receiver you're using.
I'm using a Pioneer SC-1522-K (corresponding to model SC-1527-K in Canada and Elite model SC-65), which Pioneer rates at 210 W for each of its 9 channels, at 1 kHz, 4 ohms, 1% THD. This receiver is $1000 currently, from Amazon. Other 2012 models with Pioneer's "D3" amplifiers are also rated for 4 ohm speakers.
Most receivers, as we know, are not rated for 4 ohm operation. Perhaps with these new Pioneer receivers that are, the M80s will become more popular.
VP180, M80s, M22s, QS8(4), CSW S305s, EP500, Pioneer SC-1522
M2i, M3(2), Pio vsx-1017