I don't think moving to DIRAC will make a huge improvement. If the DIRAC product you are considering allows you to manually EQ the speakers to your tastes, and you know how to do that well, then, possibly. But Audyssey normally does a competent job fixing the areas that need to be addressed.
I do not think spending money on external amps will provide you with a noticeable improvement either. A more powerful amp should normally only be required where you have relatively inefficient speakers, and your current receiver is not able to give you the volume levels you need without straining. GE Triton 7s are fairly efficient and they don't have significant output capabilities anyways, so spending money on a more powerful amp won't do much in your case.
A speaker upgrade would definitely provide a noticeable improvement. Don't get me wrong, the Triton 7s are good speakers. But there are definitely better ones. Just to give you an example, take a look at these measurements of the GE Triton 7 vs. the GE Triton 1. Obviously, the Triton 1 has significantly more output capabilities and much deeper bass. But they also have a much smoother frequency response. Pay special attention to the "listening window" graph, which also takes into account how smooth the frequency response is off-axis. If you have a speaker that has poor off-axis response (meaning, the off-axis response is different from the on-axis response), then room treatments that treat the first reflection points could help improve the sound. However, if you have a speaker that has uniform off-axis response, treating first reflection points would likely not improve the sound. The Triton 2+ is cheaper than the Triton 1, but it would have a similarly smooth response to the Triton 1. The Triton 1 does have more bass extension and output, though. Oh, and both have their own built-in amps, so again, no external amp needed with either.
This is just an example. There are other great options out there other than GE. This website has measurements of a lot of speakers, so it can help you with other options too.
Thanks again! I’ll definitely take a look at the 1’s and 2’s to see if I can swing them. I’ll look at other lines but I don’t want to have to replace my center due to the timbre matching becoming off.
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