Why did I have to take mechanics and dynamics (which I loved by the way)?
Rick, my cheap and dirty way of measuring sensitivity here at home is to inject a 50Hz signal into the M80 with a 2 Volt average value and then measure the SPL. Why 2 Volts? Because at 50Hz, the M80s impedance is bang on 4 Ohms according to the charts. 2V across 4 Ohms yields a power of 1 watt. (To verify that this is indeed the impedance I could measure the current but I haven't done that.)
Now as I'm writing this I'm thinking that perhaps 50Hz is not a great value for rooms like ours. I should probably use 500Hz or above to get away from room effects.
Anyway, an important point here is that Soundstage averaged the SPL from 300Hz to 3KHz. What frequencies did Axiom use? Maybe Axiom went down to 80Hz which is approximately the limit of anechoic chambers. Axiom did their tests anechoically; did Soundstage? Or did they do them semi-anechoically?
