heres the deal. I have a 600 watt BUllfrog Alumabass cabinet with two 15's and a peavey CS 400 power amp. I ned the best value preamp to make up the rig. I think Peavey is the way to go from what I have seen. Possibly carvin? Will the PeaveyCS400 poweramp make a good bass amp with a good preamp? EDIT_IM sorry, i meant the Bullfrog cabinet has two 15's, NOT two 12's.