first off, i know that old school RF amps are good, but how about their subs. I went to talk to this kid that i know about buying some cheap subs off him for my friend. He said he had some he'd gimme, so im like, alright expecting some jensens or somehting similar but brought some old RF subs out. One was a 12 and one was a 10. I dont know much about them so i thought id ask some ppl that knew somehthing. I got the codes off of em too. 12 is: S1-412 4 ohms "Series 1" 10 is: PCH-810 8 ohms black "The Punch Classic" The 10 has a much larger magent than the 12 does also, about 1 1/2 times as big as a matter of fact. On both, wehre you put the scpeaker wire on, they arent close to eachother as my new Punch is, they are about 5-6inches away.