Morel drivers are high quality. Maybe you should investigate the cause of failure. I dont think the spreakers are at fault, better check out your amp before you have blow another set of speakers. Returning the signal that was not straining your speakers should not damage them.
Best speakers for looks & sound < 1000
I have a pair of New Zealand made images which sound great but......Played them 4 6hrs at 1/3 volume put mute on and off and both bass drivers blew (morel 8" hex tech). 2nd times its happened. what are some better speakers that look as great. (www.totallywired.co.nz for pic images 403)and sound really good but wont blow easily.