Only two tracks to test your system, forever!

For bass, Tommy Bolin, Private Eyes album, Post Toastee.

For clarity in upper frequencies, Pierre Moerlen's Gong, Time is the key, side one.

For final overall frequencies check, Kevin Ayers, Diamon Jack and the Queen of Pain, side two.

All vinyl.

It takes more than a couple tunes to get it right.

...Diamond Jack...

@gjohns 

Not everyday someone is in tune with my musical choices. I am pretty much off mainstream and on the fringe with most of my music so it comes as a nice surprise I am not alone :) Thanks Greg.