Is it possible (or advisable) to link two small combo amps to get more volume? I've got an SWR Workingmans 10, and a Gallient-Krueger MB150S. The SWR is rated at 80 watts and the G-K MB150 is rated at 150 watts. Can I connect them so that one amp is driving both of the speakers? (or, to put it another way, one of these combo amps would be acting as an extension speaker to the other amp). I thought I would ask before I try this and end up blowing things up. Thanks in advance.