i can't wire them different because they are single 4ohm voice coil and the amp isn't 1ohm mono stable. I play it 1 hour and it was cold like ice, it don't get even little hot. Is that normal.
Amp is 2ohm STEREO that mean each channel is stable at 2ohm but in bridged mode with two 4ohm vc wired in parallel to get 2ohm, each channel will see 1ohm and the amp isn't stable at 1ohm. I'm 100% sure of that.