Everything you’ve ever heard about the old Sunn Model T amps is true. Believe the hype 100 percent. It’s absolutley elegant in its simplicity, rock solid in construction, and brutal in sonic output. This one had been in storage for a few years, but was soon ready to roar again. It needed a new set of tubes, and there was a previous repair to the normal channel preamp that wasn’t really working out. The only other issue was a cracked and acred power tube socket. The biggest surprise was how great it sounded at lower volumes. The master volume control just seems to “work” in ways that other amps don’t. My wife normally plays a vintage AC30. I let her plug in her Les Paul for a test run and after picking her jaw up off the floor her entire response consisted of one word. I won’t type it here, but it starts with an “f” and rhymes with the name of a Boston born NHLer who is one of only 5 American players to score 500 goals. Google it.