This is a lovely solid piece of Canadian rock & roll history. You've all heard the comparisons, Deluxe meets Plexi...I don't know about that. This amp has it's own voice. I have since replaced the original speaker with a Celestion Vintage 30, you know, something with some weight to it. Tubes are 2 x el84 4 x 12ax7. Silicone diode rectifier. Spring Reverb and Tremolo are tube driven and an absolute pleasure to hear, what a way to get inside the music! The YGM 3 takes pedals so well, you know when the player the guitar the fx and amp become one and it's just glorious, that's what this puppeh is all about.