The greatest tweak ever?

Cliffs?

Great comments! All I can is that the best sound I ever heard at a rock concert was the Dead @ SUNY Binghamton , NY in 1977 & even though I had already gone beyond my pot smoking days, the auditorium was full of a combo of I’ll guess 75% pot smoke, 15% cigarette smoke & 10% of who knows what smoke?

of course there was no reference smoke free venue for comparison…….

@barts whats wrong with a little N.2.O between listening friends?

Yes he is a bit off.

   guy is probably a dentist that's been huffing nitrous for years.

@ghdprentice , come on. You are too smart to be on this thread. 

This Video Opened new vista for Snake Oil sellers?

Expect New AudioPhile grade HEPA selling everywhere, and reviews tests in Audio Mags.