I don't seem to be following the thread here...

SHOCK waves, not sine waves.

and more harmonics than a '60's rock band!

AND, to make it work, they ALL have to be exactly
(there's the E word)

and perfectly
(the P word too)

(I _could add Absolutely and score 3 for 3!)

180 out of phase?



Richard (one eyebrow WAY up)