The Type-R's most defenetly trust me I got 2 of them and they hit 145.3db off a Phoenix Gold RSD 1200.1 feeding like 600wrms to each. I'll go for the type-r's if I were you. And take a look for yourself...
Well you said 70x2 thats ridiculous little amount of power for almost any sub your making that amp struggle trying to push enough power for that sub Kicker L5's require way more than 70watts change amps buddy