I have a blown out 20w practice amp that I blew out a while ago, but have just recently apreciated the tone it gives me. It has a very dirty crunch noise when I put on headphones out of the headphone jack, and I have ran it through my bigger (125w) amp, but I am afraid this will overload it since there is power running out of the headphone jack. Will this hurt my big amp? Isn't it like running an active bass to the amp? Any questions feel free to ask, I'm sure that my post may be a little hard to follow.