i'm gonna go check out this sa 12 with a db revolution recone by the week end.. it's in town $100 with box he has alpine amp $50 he don't know anything about the amp.. he didn't know it was a sundown sub but yet he took pics of back of it where it says sundown on the mag boot.. so i'll have t figure out vc and all after i play it but if it plays diff worth $100, may offer $80..