Results 1 to 2 of 2

Thread: Need help with amplifier

  1. #1
    Join Date
    Oct 2008

    Unhappy Need help with amplifier

    I recently bought an amplifier from a friend. He says it's 500 watts RMS but I don't think so. There's no identifying marks on it, and there is no brand name on the back of it.


    I was wondering if there's a way to test how much wattage is coming out of the amp so I'd know if it's working, and if it will be ok for my subwoofer.

    My sub is 4ohm, single voice coil and can take 250 watts rms and 500 max.

    I'm hoping this amp will fall somewhere inbetween that so I won't harm the sub.

    If it helps at all, the amp says on the back 2ohm stable. But as I said, nothing else identifying it is there. It's for a car I know that much.

    Would be much appreciated if help could be given quickly.

  2. #2
    Maximum Bitrate Woofnstuff's Avatar
    Join Date
    Oct 2007
    what size fuses does it have..
    sometimes that MAY give an indication to a ballpark number

    Volts x Current = Watts
    then minus about 30%,

    so 13V x 30A = 390W x 0.7 = 250W (at a guesstimate)

Similar Threads

  1. Wiring two dual-voice coil subs to one mono amp
    By venom889 in forum Car Audio
    Replies: 29
    Last Post: 12-27-2009, 07:35 PM
  2. Why is my amplifier grounding out on my computer?
    By Maheriano in forum Power Supplies
    Replies: 1
    Last Post: 08-31-2008, 05:20 PM
  3. Replies: 15
    Last Post: 02-15-2006, 12:50 AM
  4. Looking for small amplifier
    By Suprapc in forum Car Audio
    Replies: 10
    Last Post: 10-05-2005, 06:27 AM
  5. Need some help with sending audio to stock amp
    By orangewhip in forum General Hardware Discussion
    Replies: 12
    Last Post: 09-04-2003, 02:21 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts