GUESS the Bruntster was RIGHT!
Hmmm...you must be running them at the ragged edge to keep blowing them. I haven't blown a speaker in YEARS...and only then because I had way more power than the speaker could handle. 
Sorry your MB Quart experience has been like this...I typically like their speakers.
I've had good luck with Boston Acoustics, too...

Sorry your MB Quart experience has been like this...I typically like their speakers.
I've had good luck with Boston Acoustics, too...









DAING MBQUARTS! I think they are gonna gimmie a new one though cuz they ARE still under warranty!