Hello there! I came across this thread when I was trying to find information on my fathers Mesa-BassMaster 400 and this is the only site that gave me a little insight. I am hoping that I could get more. My brother and I are selling my dads equipment hoping that it doesn’t just sit in a garage somewhere, but that someone with get a lot of use and enjoyment out of it just like he did. My dad always said he did a lot of laying tracks down for other artist, but he did play in his own bands. The biggest one be Slowburn. He played all over the world in the 80’s and after he had his kids he then sold audio equipment all over the world for Roxie, emagic, to name a few. His name was Joel Heppting. I don’t want to sell my brother and I short by just giving away this stuff, but we aren’t trying to break the bank either. Really any information you can give me I will be appreciative of. This is some of the equipment we have including speakers that go with the Mess-BassMaster 400.