I realize a bridged amp sees half the impedance supplied to it, and at the same time realize I am probably stretching the amps limitations, but figured the worst that could happen is to pop a rail fuse. The Adcom 555II amplifier has been used to do the very thing I'm asking of it. Manual also says a load no lower than 4 ohms should be applied in bridge mode. Personally I think my amp is having a problem internally combining the output of the 2 channels. Time for some testing.