Sub won't work

Ok, I've been progressively buying a system for my car, and I finally got an amp yesterday (Phoenix gold Octane R 2 ohm) my sub is an 8 ohm rockford.....and I have power to the amp, the remote turn on wire works fine, RCAs from my deck's subwoofer output (alpine CDA-9827) to the amp's input, and wire from the amp to the sub....what the hell could I be missing?

oh, another thing, my amp's input seems to be marked L and R.....what the hell is that in relation to + and -?

you can check the sub with a battery (AA, C, D, 9 volt). just take the + and hold it on the + of the battery and the - to the battery -. the sub should move outward when the connection is made. (unhook the sub from the amp first.)  '85 Toy

it's brand new....should be fine....

i have bought subs that were brand new and the wire would be loose where it connects inside the cone before. that is the quickest and easiest way to check it. then, if it is working, you can look elsewhere.'85 Toy

Is there maybe somthing in the menu on the Alpine Deck you need to turn on or activate the sub output? Maybe the sub level output is all the way down? Just checkin........99 F-one fitty

Pioneer Premier H/U

Alpine EQ

Kicker 1200 amp

4 Kicker comp 10s

6 kicker SS65.2 components

oh by the way , the input marked L and R is for LEFT and RIGHT. If your only running one sub , there will be instructions on how to "Bridge" or combine the left and right channels on the amp. Read the instructions and be very carefull hooking up the amp.99 F-one fitty

Pioneer Premier H/U

Alpine EQ

Kicker 1200 amp

4 Kicker comp 10s

6 kicker SS65.2 components

ok , sorry one more intrusion.......I just looked and the amp is a mono block amp. I should have looked first. (my bad) Anyway , the amp still has Stereo Left and Right inputs but automaticly does the bridging internaly for you. Sorry for the confusion.99 F-one fitty

Pioneer Premier H/U

Alpine EQ

Kicker 1200 amp

4 Kicker comp 10s

6 kicker SS65.2 components

check to make sure that your sub pre-out is turned on...it is my experience that any alpine that comes with three pre-outs comes with the sub pre-out turned off...to turn it on hold your set up button down for 3 seconds...use the track forward button to get to the sub option...then hit the band button to turn it on...if this is not the issue then what kind of rf sub you got...only reason why i ask is it could also be a lack of power issue...your amp is rated at a mere 75w x 2ch at 4ohms...at 8 it would be even less...in addition to that...even though alpines come with a 4v pre-out...you only actually get 4v when your sub level is turned up to +15...hope something helps...