Wow man, that was awesome! I did not expect to see modifications when I clicked on this post, and really enjoyed your detailed description of how you repaired and improved on the amp. The 10 and 12-inch speakers sounded great and your guitar is a chocolate magic Heaven. It is extremely cool that you can switch speakers as you please. I got a Mesa Boogie for super cheap several years ago, but haven't pulled it out in a while. I feel inspired to after your video! :D Thanks for sharing your obvious talent, skill, and knowledge :)