Do yourself a favor and go buy this before they run out.
It's CEA-2006 compliant, my spec sheet had mine at 103 watts rms. Run four from the JL and then two on the RF.
Subs look into the http://www.crutchfield.com/p_1081250...nce-1250w.html real nice price and it's a good sub.
or if you want some serious bass.... go with the http://www.crutchfield.com/p_206812L...54.html?tp=111
I went with the Polk MM series since they are marine certified and it was buy one get one free.
And to answer your original question...yes you should be able to run the 8 speakers from the one amp, it should present a 2ohm load on the amp and the JL Audio Slash v2 Series can run fom 1.5 to a 4 ohm load. IF that is the same amp you have.