Question re input Sensitivity and 110 db speakers

I doubt you will need an attenuator or padding of any kind, though it certainly is an option. I've used powerful amps with 104db LaScalas and had no such problems as you're anticipating. My friend was running a 200wpc Mac amp with Khorns which have a 104db efficiency rating - Don't recall any problems there. I'm currently running 500wpc mono amps into 92db efficiency speakers with no problems at all. I don't get much past 9 O'clock on my volume, but that is really not a problem (it still is a smooth transition, over a shorter rotation). The combination I'm using sounds wonderful to me (not necessarily because of the pairing of high power and efficiency). Obviously your speakers are likely a great candidate for lower power SET amps, as Tarsando points out. That's not to say they can't sound great with another option. Certainly with the higher power amp you will not have to use nearly as much of the volume, but it is not going to be an all or nothing scenario.

Marco

So what are the 110 db sensitive speakers?

Thanks all; there are no specific speakers that I had in mind, it was a theoretical question, since I have had so many divergent answers from friends about the versatility of a 60 WPC Class A amp with 125 mV input sensitivity that I wanted a consensus, concerning the range of speakers that I could use - I have previously had a thread concerning the other end of the spectrum - 85 db 4 ohm speakers, that I chose the highest sensitivity of speakers that I am aware of, to determine users's experience at both ends of the spectrum.
This all stems from my Denon APL 3910 putting out 4 volts and clipping, as well as a ML 32 preamp clipping Atmas-Spheres when the db gain was higher than 12 - took me weeks to figure out that the input was too high. Long answer, but that is what this is about: trying to tie together inputs, outputs, amp and speaker sensitivities, having been burned twice (but fixed both times). I'll get the answer by taking the amp to an audio dealer with a variety of speakers. But I appreciate all the help. Thanks again.

In addition to the speaker sensitivity problem, you may also find that it will amplify any noise in your system, especially that in your power amp. I would try it first to see how it works.