I have a few questions about two different car amps?

I have a KAC-929 1000w at 1 ohm car amp, and i have two kicker cvr 12s. My kicker cvr 12 are dual voice and i have each voice coil on each sub hooked up in parallel sequence. So if my KAC-929 is a two channel amp and i hook up each speaker up to its own channel will i get the full 500 to each speaker or since its a two channel i would only be able to get 2 ohms with those speakers therefore giving me lower wattage per speaker? The other amp i was thinking about buying was a Hifonics HFi1000D 1000w at 1 ohm mono block and or a D block amp. So since that amp is a mono block the final impedance would be 1 ohm so would that give me the maximum output between both amps? I just want to know what amp would be best as far as sound quality. I kinda confused myself trying to explain so if i'm a little unclear in some areas i apologize. Thanks for your help. Also can you for sure tell me if the Hifonics HFi1000D is an amp that is hooked up internally in parallel sequence because it has two + and two - terminals but its clified as a D mono block.