Need an amp opinion about 600Wrms@2ohm

ok guys you all know more about brands then me so here goes....

i have 2 powerbass M-10's in a ported box. each sub is rated at 300Wrms@4ohm 600W@4ohm max
they currently are running in a parallel at 600wrms@2ohm 1200W max

im debating on these amps

this ones a little underpowered but its on the safe side i guess, and it was recommended by this community previously.....
http://www.onlinecarstereo.com/CarAu..._DSC10001.aspx

higher powered model-same price- i kinda like this one because i can expand my system but i dont want to blow my subs before im ready to upgrade
http://www.onlinecarstereo.com/CarAu..._DSC15001.aspx

honestly this one looks **** near perfect for what i need but idk once again about the brands
http://www.onlinecarstereo.com/CarAu...d_RSd6001.aspx

seriously considering this one
http://www.onlinecarstereo.com/CarAudio/p_20525_Infinity_1600a_5cRB.aspx

thanks for the help guys
and please try to keep any other suggestions at $250 and under

go to the subwoofer forum. no one really uses the amp forum.

anyways ill try to help u. none of ur links worked for me.first i have a couple questions. are ur subs single or dual voice coil? 4 ohm or 2 ohm? wats ur budget on a amp? answer those for me and ill have some suggestions for u.

only the infinity link worked ...