What to replace DQ-10s with?

keep the 10's.....even for another 5k, you're not missing anything.

Agree with Tom re: Vandy's vs. DQ-10's, but not the Vandy 2's, which do not compete with the DQ-20i's. The DQ-10's ARE dated and not particularly coherent, but not so the 20i's which feature Scanspeak tweeter and midrange drivers with First order, attempted phase correct crossovers.
The 3a's are VERY similar sounding to the DQ-20's and Alons, but I find them a bit dull in the mids by comparison.
The 5a's are awesome, but not in your price range presumably.

Opalchip's recommendation of Alon V's is good. I went from DQ 10's to Alon II's, the Alons are a dipole design, right in line with the Dahlquist. By the way, I still have my DQ10s stored away, never letting them go.

Hey Jjh92! I submitted this EXACT same question years ago! (And I still have my 10's w/upgraded x-over in storage).

Ended up with Acoustat III's to get perfect mid-bass / bass-mids. Now selling them so, ... there you go!

You did a review on the DQ-10s 10-19-07. There were several responders that shared how much they liked the DQ-10 and I am not alone for regretting selling them. Now you have some more posts from DQ-10 owners and X owners who still admire the DQ-10S. I use to own a pair of Fulton Js. But the DQ-10 is what still impresses me the most of all the speakers I have owned except for what I currently have, Essence 10As. I hope you do not sell the DQ-10s. If you do you will probably regret it someday just like me and several others.It would be neat if we could talk. We could cover more specifics that way. Anyway be careful, It will take a very good speaker to replace the DQ-10 if you are looking for significant improvement.