S4 great condition. I don't have any specs on this besides it is 300rms. 120.00 shipped obo
I have no idea what the white stuff is,but it doesn't effect it at all. I can try to shine it up.I got a 12" RE Audio RE with chrome mag not the REX shit and a MTX mxa3002 2 channel amp (300 rms at 4 ohms bridged). But yeah, what's the white stuff on the bottom of the magnet or is it just me?