Worldcup, I've started looking into the same issue,heres a couple a links from here:
http://forum.audiogon.com/cgi-bin/fr.pl?fcabl&987256243&read&keyw&zz10=gauge
http://forum.audiogon.com/cgi-bin/fr.pl?ymisc&1009817715&read&keyw&zz10=gauge
Please post anything of interest you come across on this subject.
KP
http://forum.audiogon.com/cgi-bin/fr.pl?fcabl&987256243&read&keyw&zz10=gauge
http://forum.audiogon.com/cgi-bin/fr.pl?ymisc&1009817715&read&keyw&zz10=gauge
Please post anything of interest you come across on this subject.
KP