OK, this is in Past Masters as the main back end transducers (speakers) are my veritable Quad ESL57.

As reported on the MiBO thread the ESL57 can do a pretty remarkablbe (wine overload - I could have corrected it, but though it more amusing to leave it) job as PA speakers

Shirley was out this morning and I was playing 'Pacific AM' from side C of the new Yello album 'Toy'.
Now for those that know this track it has SCALE in spades. No need to pretend, I whacked the volume up .

By jimminy what an experience
I have plenty of power on tap, plus a rather good sub that extends the bass response Waaaay down. Absolutely sublime SCALE to the performance.

In fact it is so good I do have a small problem, if I whack the volume up too much I get airbourne feedback from the sub into the TT deck/arm/cartridge (don't know which) that sets the sub cone off at huge amplitude at a very low frequency, say about 3Hz

Scale of performance = wow.