Looking to upgrade my towers

Jmccl12 - 

I've used a PRSC-5508 for both home theater and 2 channel stereo and for 2 channel stereo it sounds absolutely spectacular provided that you run in Pure Audio mode with all Audessey room correction and EQ fully bypassed.

Back in the day, I owned a pair of DM604's and they were amazing value for what I paid for them at the time ($250 from a local private party).  These would be a step above the DM603s so you might consider holding out for a pair at a good price.

Greg

@jmccl12 - the Mirage speakers use a diffused tweeter setup to give it that 360 degree dispersion. This is supposed to give a wide open, wall to wall sound stage. However, as the higher frequencies are dispersed around the room, and not directly toward you, I could understand how you feel they may not be crisp enough for your liking. 

Any traditional speaker that has the tweeter and mid-range pointed directly at the listener is likely going to sound more crisp, and definitely different, than the Mirages.

If possible, I would recommend you try to audition another speaker in listening room before committing to a purchase. You may, or may not, like the direct sound.

Ok. Thats very helpful feedback. Thanks alot. Some different things to think about now. 

I've never used a passive line before. Anyone recommend who or where to start looking. If I'm going to try this out I'd like to know my money is going to a quality component for noticeable change. 

You'll hear a big difference even if you get a cheap one. Of course you can spend more money and get one that sounds better, but the main thing is to get the HT processor out of the signal path. I have one made by Channel Island Audio that would be fine. It sells for $200-$300 if I remember correctly. Creek also makes a good one.

If you've ever wanted to try something like an AQ Dragonfly, that will work as well. It sells for $100 and you can use it with a computer, tablet or smart phone. You would run a cable from the DF directly to an input on your amp. Best Buy sells them, so can always return it if it doesn't work out.