any one of those amps will do the job fine... I can tell you from exp. that the cobalt amps are pretty fkn solid though as I have ran many of them @ 1 ohm daily for months on end without issue even though they are not 1 ohm capable... You could run those pioneers in 4 ohm stereo or bridged at 2 ohms and it would be more than enough power for those subs either way //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
