How can I improve my HT audio?


My current setup (5.1):

L/R: OLD infinity Kappas (6.1's)
center: Definitive Tech 2000 C/L/R
Rear: Definitive BPX
Amp: ATI 1505
Pre: reference 30

What's the most economical way to get better sound? Replace the Kappas? or get a sub? If replacing the kappas, is it best for HT to have a matched system and go with definitive for the front channels as well? Any thoughts would be greatly appreciated.
themightymilkman1e72
Thanks! Appreciate all the input! Any suggestions for a sub? should that match the other speakers as well? or is it less important with a sub. Would buy used up to 800.

Peter
You can try DefTech 2006 TL for your L/R, list $1200 new. They are great for HT application and have integrated powered sub, BTW. I auditioned them with McIntosh amplification against Paradigm Ref. 100v2,which I ended up buying (primarily for music), I was quite impressed with DT's for HT.
The sub does not need to be the same make as the rest of your system. The crossover may not be an issue either because your pre-processor has an electronic one built-in. Run the sub crossover off or wide open then set the volume level with test tones and a meter. There are a number of good subs out there. REL seems to be a favorite for musicality. M&K and Velodyne is another good place to start. Try a search on best subs in the archives.
At the risk of opening a debate that will never be settled, I would not agree that you should "avoid dipoles/bipoles". True, the shift to DD5.1 convinced many people that direct radiators were a better bet than dipoles, but there is by no means a concensus on that. Specific brand, placement, room acoustics, and many other factors enter into the equation. YMMV. Listen to both.