OK, problems like this can seem overwhelming so you want to have a
troubleshooting "plan" so you can first identify the source of the problem.
Before I give you any advice, PLEASE go to:
http://www.mobileaudio.com/rac-faq/
This is the FAQ for this group that has been added to and mended for over 20
years. It is FILLED with usefull troubleshooting advice from engineers and
pioneers in the car audio industry. There is a TREMENDOUS amount of
knowledge that can be gained from that site.
Like I said, you first need to find the source of the problem so break it
down into small tests. For instance, start with taking your Mp3 player and
using a short set of RCA's, take it to the trunk and connect it directly to
your sub-amp. This will tell you a lot. Like if there is a problem with
the connection going from the dash to the back of the car (bad cables).
If it still works poorly try using a different set of speakers coonected
directly to the sub amp using a short cable, like a small set of test
speakers YOU KNOW work. If the speakers seem to work fine then there is a
problem with your subwoofer connections.
Again, break this up into small tests you KNOW should work. Hopefully, it
is not a problem with your sub amp but I suspect it is a wiring issue (these
kind of problems usually are).
Again, use the website I gave you as there is a comprehensive step-by-step
troubleshooting guide for problems just such as yours. Good luck. Let us
know how it's going.
MOSFET
"direct" wrote in message news:h9q6m.36040$PH1.34965@edtnps82...
Ok, actually post install troubles. After installation, everything work
fine. Over the next month, some humming/noise developed, and was
occassionally quite bad. Then my wife stuffed the trunk full of stuff and
shoved the amp and sub-box to the side resulting in some wiring problems.
I replaced the rca cable from the head-unit to the amp and now there is no
sound when configured the same way as originally installed. BUT
- if I only plug one channel of the rca into the amplifer, there is sound
- if I directly connect an ipod to both channels of the amp, there is
sound. (so probably not an amp issue)
- if I just touch the post on the rca cable to the inside of the jack on
the amp, there is sound. Even though the outer part of the cable is not
yet in contact with the jack!
- in all cases, there is either no sound, or clear sound with no apparent
noise/buzzing
ideas?