I may be quite possible that the Sb-220 WILL do 1800 watts PEP output with the special Peter Dahl transformer. A regular SB-220 on 6 meters could do 1600 PEP with a standard transformer. Check this out _YouTube - King Conversions SB220 Monoband 6M amplifier 1.5 KW+ - QROKing.com_ (http://www.youtube.com/watch?v=8c_X9C--hmM&feature=related)