Actually....it's such a beefy sub that I decided to return it..and just get a Basslink (Infiniti-powered sub). In the end, far cheeper and better sound....from what I've read. Thanks.
the stock sub is actually 2 ohms
operating it at 1 ohm is a big no no
operating it at 4 ohms is doubling the resistance thereby halving the power put out by the amp
i think its about 75-100 watts