Amp power is matched to the woofers. You could do one HX300 amp on a single SW-12-08 on each side, but maximum output will be on the low side. For your application in the near field it might be enough though. You do have to use two amps if you space them apart though. If you put the pair in a single dual H frame and place them on their sides in the center (between the speakers) then you can use one amp and drive them with a mono (summed left and right) signal.