best speakers under $1000 for classic rock?

If you happened to have the chance, try and audition some of the older Snell (mid-90's) floorstanders(J/D/E/C). Used you should have no problem finding one for under $1000. I believe the D's are the largest that UPS would ship. (90lbs)
Therefore, try to find one locally if possible. Very nice spks. with beautiful wood veneer finishes. Great bass and I believed they all used a soft-dome tweeter (front and sometimes a rear-firing one) which should work well w/your Denon.

Vandersteen's will treat your ears and your budget.

Lots to choose from in your price range here on Audiogon.

Good Listening,

Paradigm Reference 40 or 60 would be great. One of the best values for the $$ and a big step above the regular Paradigm speakers. The 40 is selling on Audiogon now.

Are you looking for a complete surround setup? If so, there is an ad right now on Agon for the PSB Image 4T,9C,10S for $950. Perfect, if a surround setup is what you're looking for.

As a disclaimer, I own the 4T and I do not know the individual who is selling the setup I reference above.
Good Luck
Dave