"John B" wrote in message
...
On another note...there is one CD I have ( a copy ) that absolutely
drives my drivers (bass) to the point of destruction...a 3/8's to 1/2 inch
throw on a normal CD and with this one specific copy they are going near
one inch....even at very low volume....any ideas?

P S It blew one driver before I figured it out...a not inexpensive
repair...

john

if it is JUST that one CD, I would simply suggest avoiding it. Otherwise, a
subsonic filter, if your preamp has one, will address the issue if it
happens regularly. Odd that it is a CD, as I've heard that issue from LP
play more often, and that issue can be frequently traced to one of a few
factors, such as tonearm resonances, surface resonances from below the
table, or improper cartridge setup.
Tom