I wouldn't risk it. How did the problem show up? Was everthing working just fine and then one day it was shorting out?
Yes, the speakers could be at fault, a bad tweeter or driver would definitly cause a short. Even a single strand of speaker wire would cause this.


M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM