I looked for combs and filters, and didn't see any causing problems.
Ian and I did chat a bit about comb filtering, and he said something that I never thought of...
If you have a 2-speaker stereo setup for listening to anything, then those 2 stereo speakers are creating comb filtering. The only way to eliminate comb filtering in that situation is to go to a single mono speaker, and who wants to listen to anything in mono?
Just by going from mono to stereo creates comb filtering just like what happens when center channel speakers have more than 1 tweeter in the same plane.
Audiophiles don't complain about comb filtering with their stereo setups, and blind testing (per Ian) proves that people LIKE and PREFER the comb filtering stereo setup over a mono speaker.
