I just got a MESA BASS 400 (non +) in the mail, it doesn't have a owners manual and MESA's website doesn't have it there either. Do any of you have an online version of it you would be willing to share with me? That might be the solution to my question, but I will ask it anyway. With it having 4 outputs on the back of the amp (2 4 Ohms and 2 8 Ohms) does that mean that I can attach a cab to any and or all of them? Most tube amps have a selector to tell the head what the Ohm draw is going to be, I can't see one on my MESA, and I want to be safe. I have it hooked up to a Ampeg 8X10E right now (with one cord from the 4 Ohm to a mono input on the back of the cab) can I plug in a Ampeg 2X15E into the other 4 Ohm connection, for a total of a 2 ohm load? Or do I need to connect the cabs in series and then plug the two of them connected together into an 8 Ohm connection? I want to leave them as is if possible, but I don't want to damage my head if I can help it. Thanks all in advance. Cheers.