Whats a good amp for 3000-3500rms

[Indianabobo]

So in the future im going to be running 3 cadence ZRS's they are 1000rms ea but ive had 1500 to mine for 4 days while i borrowed a friends amp and it ran smooth and cool no problems, but im looking for a amp to power 3 of them, im ok at figuring ohm load but what exactly would 3 2ohm single voicecoil subs be in parallel? .75 ohm? im looking for an amp that will do 3000-3500rms at what ever the ohm load would be i need help with that, and that isnt a giant power whore, i looked at the powerbass 3000D but form what i read it used huges amounts of current, any ideas people thank you for the help