Ok, I got a Kicker SoloBaric S10L5, and i dont no much about amps, im only planning to power this sub, which should be good enough for me. The sub reads on the box:

Maximum recommended amplifier ( watts peak ) 900
Maximum recommended amplifire ( watts RMS ) 450
Frequency response ( Hz ) 24-100
It also says 4 0hm om the box

so would i need a mono amp? or a 2 channel or what? i just need a decent amp between 200-300$ or less and i should be fine, it also says: Dual 4-ohm voice coils for wiring flexibility, i dont really no what that means but all i want to no is what kind of amp i need and how much it will cost to do an ok job on this sub.
thanks in advance