the subs are 4 ohms it my 15's was different they was kicker but the bottom of the line dont kno wat the ohms was on that i dont have them anymore and dont kno the wiring
it get real hot after a while but not when they turn off it use to turn off after i had my 15's hooked up and playin for an hour str8 but not it plays for like a min or two and turn off