old rf amp help

[Duex]

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

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[taylor 10+ year member]

prolly cheaper to buy a new one....if it's a factory head unit then then you will have to hook up the ignition wire (wire that gets energized when the key is in accesory. ) to the remote terminal on the amp...

 

[taylor 10+ year member]

it will not run 2 ohm mono by the way...it will only run 4 ohm mono. 2 ohm stereo stable only.

 

[Duex]

that ***** but thanks for the help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif