The Pulsars have been measured at 83dB sensitivity. See Stereophile review. I am interested in the Pass XA-25 as am amp to drive my Tannoy Sterlings. I am currently using a BEL 1001 MK5 (50wpc). Almost purchased a used pair of Pulsars for my 12.5 x 14.5' room however did not due to the low sensitivity. Pulsars are an easy load impedance wise however. I think of them needing watts more than current.
