Rogue, I appreciate the "lesson" but I wasn't asking about impedence. And there are amplifiers that are "rated" for the same wattage regardless of load. Check out Alpine's PDX series amplifiers. Not only do you get the same wattage at the different impedence levels, you can also stack them to save space
My question was, if you have a set load, do the voice coils each get an equal split of the amplifier wattage regardless of them being in series or in parallel? I believe mrray13 answered that for me though.
Which boils down to, my subwoofers are both dual voice coil subs (four voice coils total). Each voice coil is rated at 500watts max (probably 250watts RMS, they're a much older version, I need to find the paperwork) which means I need an amplifier that can supply 1000watts RMS at whatever impedence I decide to wire them at.