Adding sub question

I don't understand the posts of Bo1972. What does fast mean in terms of a sub aimed at reproducing LF? Why stereo for subs rather than mode smoothing, given the pyschoacoustic literature on LF localization?

If I were OP, I'd pay attention to Al, and order an Oppo 105 that can be returned if it doesn't solve the problem. It should settle the impedance mismatch issue.

db

I think I found the answer!!! Went to a local dealer in WI speaking to him of my issues, he sent/loaned me a pair of Analysis oval speaker wires, they are their demos so the are broken in, a voila! 80% harshness gone. Way more pronounced on the low end, just may be the ticket! BTW these we not a biwire pair, What are your thoughts on putting jumpers in and running single wires instead of biwire(fyi the Tylers are setup for triwire) I currently have a jumper between the tweeter and midranges.

Good to hear you have made a change that improved the bass and eliminated most of the harshness in the top end. If you plan on keeping the speaker cables, I would definitely add the matching jumpers.

When it comes to bi-wire, some like it, some don’t, and others say it doesn’t do anything. I’ve tried it many times and finally come to the decision that I prefer single wire with matching jumpers. If your Blue Heaven was bi-wire, then that could possibly be part of the problem. If you have interest in bi-wire, my advice would be to try it before you make a commitment to purchase.