The unofficial Earth Sound Research web site

I find this on ebay:
http://cgi.ebay.com/Earth-Kustom-Stagemaster-PA-2000-sound-module-240w-head_W0QQitemZ230343991849QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item35a1926229&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|240%3A1318|301%3A1|293%3A1|294%3A50

Is this the amazing amp I eard about? Is there any tubes in it?
I 've seen another one cheapest, but made in Brentwood, somebody knows?
excuse my english, i'm french.

anthony