Sorry for the delay...didn't mean to get you guys all bent out of shape. it's just that I had a lot going on...
I did return the unit to fractal in exchange for a Mark II. So this is what I did; I tried the FM3 with my current HS8's and I tried it with the JBL's and then I tried the FX3 with the JBL's and HS8 and I always had the same issue, when the FM3 was involved.
It has nothing to do with the FRFRS and it has nothing to do with the FX3. Settings were literally the same all across the board and the sound was pretty much identical, but it was this hard to describe thing, like the trail off of the note which was getting cut short ...typical of a transistor type setup. I even did a full wipe of the entire unit with a from scratch thinking that it might solve the issue, but it never did. I tried everything I could before giving up and heading for an exchange to another Mark II
I put my FX3 in place of the FM3, and everything worked out as I had anticipated. The problem is gone. I wasn't trolling and I and I really wasn't trying to create problems here. I was only bringing up something that I'd been experiencing. I didn't want to have to go to a Mark II because it's a bigger unit, and it doesn't travel as well in a suitcase with speakers, as well as say those same speakers and an FM 3