Long story short my friend had an alpine type s and an alpine type r (both 12s and type r is not his). one day he gave the type r back to my other friend and didn't say why, After a few days we started to think he blew his amp. Last night he came out to me and said that he blew out 1 channel in his 2 channel amp and that now instead of having the 2 subs bridged he told me he has his D4 type s wired at 2 ohms. Now my question is I thought you couldn't wire 4 ohm subs to 2 ohm. am I right? cause I told him this and he changed his story from him having something special going on and that that's why he can wire it at 2 ohms to trying to convince me that there is a special way to wire it.