im new in car audio and i will get my suv soon. my dad gave me and old rf amp (punch4080 4 channel 40 rms) i have repainted it and fixed a broken gain button. i know how to hook it all up except i dont understand what phase means (has 180 or 0 option) and what exactly input means (r or f). and im trying to hook it up in my moms car but i dont know where to find a rem wire (i think its for the head unit tells the amp when to turn on and off). and i think my dad said the 3rd channel was blown, i was wondering how much that would cost to fix at a local car audio place. i cant send it to rf cus it has the serial nuber missing. i was hoping to bridge it to 2 10's at 80 w @ 2ohm. do u guys know of any cheap 10's i can could stuff in my moms trunk. thanks
durex
