I saw this on Ebay and thought I'd pass it on. This is the one I use with my 1000 watt Yamaha. 400 watt output. 860 watt input. It will fit inside your icebox (door removed).http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=4443663619&rd=1&sspagename=STRK:MEWA:IT&rd=1