damn, that really suxs.. the way i think of it:

1.) bridging two channels will make the amp read 3ohm = NONO

2.) bridging both voice coils and running single channel reads 3ohms = nono

3.) bridging that on the amp = 1.5ohms = double nono!!!

4.) run in stereo = works but not using your equpiment to its potential..

WOW, this is tough.. sorrie mang!!!