i bought a seismic 2x10 bass cabinet. which i liked. but i thought i could get a better sound with better than original speakers. i went to my local speaker repair shop and they had a pair of swr eminence speakers they said would do better. the 1st time i played through it, it sounded terrible. took it back to the shop and they found that the speakers were so much better, they were vibrating the magnet off the tweeter. the magnet was tightened really hard and disconnected. sounded great. about a month later, no sound. i took out a speaker and found one of the wires had come off. i reconnected it, and again, it sounded terrible. took it back to the shop and they found the 1/4" input jacks were vibrating.. i took them off and super glued them back in. all is good again. i use the 2x10 with a 1x15" peavey pro neo, and sometimes with an ampeg 4x10 pro neo. still looking for that really low, loud, fell before you hear it, bass sound. any suggestions?