“This is my Tweed WF-55 Champ with a new extension cab. The amp is modded with a NFB switch, r6 boost and a 6L6 tube with slightly hotter bias. It sounds great and even better with the 12 inch extension cab. The cab is covered in fake leather and loaded with a WGS et90 speaker. It’s my first attempt to build anything like this and I”m really happy with the result and Will hopefully build a head to go with the cab.”