My friend has a hifonics titan.We ran his sub which is a soundstream t5-12 inch sub,we had the sub run at 4 ohms at first but then we ran it at 1 ohm.Sounded great until he turned on the epicenter,then the amp went in to protect mode and now it wont turn on?my friend said he rewired everything on the amp again and still wont turn on?anybody know the problem?