I got rid of my major tubes (Ampeg SVT-Cl and Fender Super Bassman) and downsized to class D. The only way to go for an old guy with a bad back. I now have 3 great rigs that are light and powerful (2 Mesa Subways and a Fender Bassman 800) but am Jonesing for a big tube amp to keep in my home studio. Interested in working a trade for an SVT 300 watt tube amp or Fender Super Bassman.