Hi,

Ian Colquhoun did some fixed-tone SPL measurements on the M80 in our anechoic chamber yesterday. He reports that by placing the mic between the tweeter and midrange drivers 10 inches away he achieved 120 dB SPL at 1 kHz at 15.15 volts input. The distortion was well under 1%.

Regards,

Alan Lofft,
Axiom Resident Expert (Retired)