Not quite the case. Very few have been blown for any reason. The problem was that I was getting calls, e-mails, and PMs literally every day about "can I use X battery and X alternator at 1/2 ohm" -- usually a stock alt and a weak battery with lacking wiring... then people would get them, wire them to 1/2 ohm with bone stock electrical systems and call, e-mail, or PM me asking why it is going into protection.probably because to many of them were ending up BLOWN!
I'm running the "old" HD's and they're very good for music. I've run the HD's at 35 & 38Hz tunes and they sound good with both. I mostly listen to 80's metal, old school rap, r&b, 70's rock, etc... and they can be VERY musical when the gain is turned down a fuzz, and can be BEASTS when it's turned up.How musical are these subs...ive heard that the old hd3's werent very musical...loud but not musical