Those cans are magic. I'm curious how JFET stages sound compared to them. I tried the OPA2134 that was for the original Bugle, in my Bugle, in just the output stage. I turned it off, it's a joke. There just isn't a contest.
However I also tried going back to Caddock TF resistors for the input on my original Bugle. Thats after replacing them
with these. That was just as bad as trying to use the OPA2134 again.
The input resistors, any before the first opamp, should without any shadow of a doubt be LDR's. I don't care what your reservations are about them, by the time the signal gets through to the end you won't care. This is the difference between putting a fleece blanket over your ears while listening at a moderate volume. I wish I was exaggerating, but without the LDR's I lost anything that I'd consider to be "Hi-Fi" in the listening. It went from audiophile to audiopile.
It's nice to see the high grade stuff in yours. But if I'm not mistaken it appears you could also upgrade signal path resistors with something like PRP's or Dale's RN55, that'll fit nicely and not cost you an arm and a leg. However, put LDR's in for R16 L/R. The resistors I'd upgrade (besides R16), R 1, 4, 5, 7, 9, 10, 12, 15 L/R. Then if you want to get even more fancy, C 2, 3, 9, 10, 13, 14, 17, 18
could be these bad boys.
These look awfully handy to reduce a little inductance and brain strain. Ya, I'm one of those silly tweaking people (trying to give you the disease). But ya know, Jim designs some good sounding stuff; that sounds real nice when you let is breath.
