Got a recently bought 1973 Traynor YBA-1 back from my tech. Sounds great! Super loud even on 2.....then starts to crunch up after that all the way to Marshall JTM45 land. I also have a 1974 YRM-1 and surprised at how much dirtier the YBA-1 gets. People keep saying the YRM-1 is a guitar version of the YBA-1....but it’s clearly not. The YRM-1 is way more like a Super Reverb or something.