If the Falcon speaker is their LS 3/5a, it has a minimum impedance of just over 7 ohms and Hi Fi News rated it as an 8ohm design. Also, it has a big peak in frequency response over 10k. Taking those aspects together, it might sound louder, partly through being optimally matched to the transformer tap and partly subjectively. It would be interesting to put an SPL meter on both speakers and see what it reads.
15 ohm speakers yea or nay?
I just bought Falcon speakers that are 15 ohms. I have Harbeths that are 6 ohms. Both have the same sensitivity rating of 83db. I am using both with the same tube amps.
What has me scratchin’ my head is that the Falcons are much louder with the volume set the same on my preamp.
Any opinions on why a 15 ohm speaker would be that much different than a 6 ohm speaker with the same sensitivity specs?
THX