Speakers costing range of 2500-3500 per pair

^ Johnny,

 There are plenty of truly efficient speakers that don't result in audible ringing. However, I agree that plenty of ineffienct speakers sound excellent. I suggested he look toward higher efficiency speakers because Denon receivers often lack grunt IME. I suggested the 1Cis because my experience was that they're plenty efficient for modest power but they also trump many speakers in this price class. His particular receiver is supposedly capable of 140 watts into each channel, so maybe it would be just fine with more demanding speakers. 

Helomech
i agree the ones may be a great choice . One day we delivered a pair of Vandersteen 3 a sigs their full range ability Multi enclosure 86 DB SPl the fellow had an 80 watt Dennon
and I said man this is gonna suck
much to my surprise playing Enya
Watermark the sound was amazingly enjoyable and it killed my predjudece into always staying open minded.
thats why I invite folks in with their gear to try it for their confidence 
isnt 
its always  better to see with your ears then
listen with your eyes
JohnnyR

Have to ask what your goals are?  Is your priority movies or 2-channel music listening?  If the latter, what are the most important sound reproduction characteristics to you from a speaker perspective?  At this price level for speakers I think you're outclassing your receiver and won't get the best out of what speakers at this level have to offer, unless your plan is to upgrade your upstream electonics fairly significantly in the future.  Don't mean to be a buzzkill here, but without knowing the answers to these important questions it's really impossible to make an informed recommendation for your specific situation. 

harbeth 7es3

http://www.theabsolutesound.com/articles/harbeth-hl-compact-7es3-loudspeaker/

The aforementioned Vandersteen 2CE Sig IIs are another must audition in this price range but are not as efficient.

I'd take it even farther, the 2Ce Sig II is a must-audition up $5K. I drove mine to satisfying SPLs with my Ayre AX-7 (60 W into 8 ohm, 120 into 4 ohm). I only heard clipping if I tried to reproduce The Who at concert levels. Anyhow, the 2Ce is superbly balanced in it's price category without any substantial weakness.