DGold

Do you have a link to the exact sub, assuming their of decent quality 50 watts of clean RMS over shouldnt be too much.. the ohms of the subs are just for wiring options running 2 4 ohm svc subs in parallel gives you 2 ohm presented to the amp so it should be fine, i ran a class A/B amp at 200w RMS and tho it does tend to get hot it handled daily abuse so that amp should be fine. I ran a similiar build wattage wise with stock battery/alt and no big 3 upgrade so you should be ok as far as that goes. Im by no means an expert so if i said something wrong please let me know.