Russ-
I have not used these speakers. But based on the info available at Peavey's website plus your other questions, I have a few comments/observations for you to consider:
1) this speaker is designed with asymmetric coverage (it tilts the HF coverage angle down 10-degrees). You need to take this into account as far as where they will be hung and how they will be aimed.
2) is the 90-degree horizontal by 40-degree vertical coverage pattern of this speaker appropriate for your space and seating arrangement ?
3) do you have adequate structural rigging points where these speakers need to be installed in your sanctuary for best coverage ?
4) you really need to have someone with professional rigging experience hang these. This is a life safety issue.
5) they claim the frequency response is 70Hz to 17kHz. Therefore you can get by with no subwoofer for a while, but you will have limited low frequency outout until you do add subs. You really need to apply a high-pass filter to protect these speakers until you get subs.
6) your question about your existing Crown amp is meaningless until you identify the amp model.
7) the lower cost DBX driveracks are known to emit loud pops through the speakers when they are turned on or off. This can cause damage to the speakers but it can be avoided if you very carefully turn things on and off in the correct sequence.
The VSX26 had a few glitches when it was first introduced. I am not sure if Peavey ever straightened these out. I would look into this before buying one.
