I still use my 20 year old TNT115. I went to a 410 but had a problem hearing it on stage when I was next to a loud guitar player. It sounded good out on the floor, but I could not hear anything on stage. Search for 410 and not hearing on stage and see what you find. I just ordered another 410 to make a stack. Some say the best amp stand for a 410 is another 410. I do like the sound of the 410, but until I get it figured out, I will keep falling back to my trusty 15