hey, new here. My name is J, from Texas, play metal/doom and such. I bought an Ampeg BA210 SP combo and I noticed that it doesn't have any ext speaker outs. a buddy of mine plays guitar and he's run from the line out of his JCM 800 into an old Superbass and it worked fine. my question is will that work for me if I go from the XLR line out into, say another Ampeg like a BA115? would I need to set the other amp to my settings or leave it all12 o clock?