hey folks. I moved my shredded old blown subwoofers for testing with a 2 amp battery charger and no movement or anything. Even with 10 amps! So that means the voice coil is out! Is it possible that my amp is ok and the the speakers just are bad so I could power anything? The foam surrounds are just gone! Any opinions. I still probably will get the amp from the junkyard just in case anyhow though.