03-30-2009 08:35 PM
i have an phoenix gold amp with a jbl 12" sub
i hooked it up about 2 weeks ago and its been working great. good bass sound coming from it.
today i got some self tap screws so i could screw the amp down to the back of the seat. so i unscrewed all the connections
so i could move the amp aroound to find a spot. in the end i didnt end up screwing it down as i didnt have enought room.
so finally i went an reconnected all the wires to the proper locations, same spots as before. but now when i go to turn the radio on,
if i put the volume past lets say 10, the sub just starts pounding to its max constatly, and it wont stop, even if i turn down thevolume, it keeps going, so i have to then turn the car off.
what could be wrong, ive checked all the wiring and ground poitns etc...and they all seem fine
04-02-2009 08:25 AM
it could be a ground issue - bad ground point, lose connection, wire pinched, wire corroded, not making enough contact, and on and on........
Automotive Installer, A.E.A.T. Ontario Cert.
Not employed by Future Shop
04-02-2009 07:15 PM
i checked all my ground points, cleaned them off, re soldered my terminal connections and checked when i ran the wires. nothign seems odd.
so did i blow the amp? the fuse is still fine.
04-08-2009 08:50 PM
A few years back I had an MTX amp that did the same thing, although it happened while it was playing. In my case it was from putting a 1-ohm load on the amp and it cooked something. Subs just starting going crazy. Friends in the car thought it was really crazy bass - felt like shotgun blasts going into the seat. Had to turn off the deck and then disconnect the amp.
Anyway, symptoms seem the same. For what it's worth, I got that amp repaired for about $50 at an electronics place in Winnipeg but that was probably close to 10 years ago now.
To be fair to MTX that amp was pounding for a really long time under that (improper) load before it went. One of the best amps I've ever had.