You know what Tom, it was a quick test of Aja after booting up system cold.
Made my post.
Now, after an hour of playing, surfing the web while Kamakiriad plays, sans 7+, re-cued the CD and added the 7+, back to surfing.
After awhile I realized I was tapping my foot along with the bass line, and here's the thing, the ankle of that foot is swollen like a grapefruit, so I don't want to move foot at all!
Still not something I'd call 'significant improvements', but the PRAT elements are better, soundstage a little better defined, and the bass is so nice, it's got my bad foot going.
Still, the 7+ is trying to push electrons through a 30 year old, 16ga. curly-cue captive cable, only so much it can improve.
But if I was keeping the 4B, I would definately have Pete make me a cable unfinished at the amp end and replace the existing cable.