Results 1 to 3 of 3

Thread: sound cuts out when volume turned up to high

  1. #1
    Join Date
    Oct 2008

    sound cuts out when volume turned up to high

    Alright, so me and a friend were trying to replace the default sound system on his 87 jetta. We've got two pioneer speakers and a > headunit.

    Anyway, two problems. The first problem was that the fuse would blow after playing music for a minute or two, we got around this by taking the memory 12v line off the B+ cable and hooked it up to the regular 12v lead. The main 12V power line on the headunit AND the memory line are both on the single 12v line currently.

    When we turn up the volume past 40 or so the sound chops out and won't play unless the music gets quieter or we turn down the volume. This same thing happened when we had the memory power line coming off the B+ cable but the fuse blew pretty quick after that. We tried with a 3 amp fuse (instead of a .5) and it didn't blow although we had the same problem we are having now with the sound cutting out.

    i'm not really an expert on car audio so here is the specs of the stuff we installed so you smarties can figure it out.

    100W "dual" brand AM/FM cd receiver
    operating voltage:11-16VDC
    speaker impedance: 4-8 ohms
    fuses: .5 amp fast blow AGB, 5 amp fast blow AGC

    2X 120W MAX pioneer 4" two way speakers
    4 ohms 87db sensetivity

  2. #2
    Join Date
    Oct 2008
    One thing you should check are the speaker's nominal power rating as these are the most important.
    What the nominal rating is actually how much wattage the speakers can take continuously. If it is not over 50 then that is why your fuses are being blown.
    The reason for this is that your audio receiver delivers 100 Watts total power (50 watt per speaker) but if your speakers can only take 35 or 40 continuously, then the fuse will eventually be blown as it will deliver too much power then the speakers can handle.

  3. #3
    Newbie rogue212005's Avatar
    Join Date
    Apr 2007
    McPherson, Kansas, United States
    Actually sounds to me like you've got a short somewhere. The only time I've ever seen problems like this with a new unit and no short the HU was hooked up wrong.
    Can't think of a single cool thing to type here........

    Parts Acquired: 90%
    Configured: 50%
    Software: Not Even close!!!! Looking for a good phone software solution
    Fabrication and Install
    Screen Mounting Figured Out!

Similar Threads

  1. Sound cutting out when going to change volume
    By dhantiflag in forum Road Runner
    Replies: 5
    Last Post: 03-31-2007, 07:05 PM
  2. Audio problems, Epia Sound, and FAQ stuff
    By gothate in forum Newbie
    Replies: 2
    Last Post: 06-16-2005, 05:04 PM
  3. alright, sound distortion from over boosting.
    By ares in forum General Hardware Discussion
    Replies: 1
    Last Post: 03-14-2004, 01:04 AM
  4. got sound?
    By masch in forum Newbie
    Replies: 20
    Last Post: 11-17-2003, 10:01 AM
  5. Monitor makes high pitch sound...
    By SuperMatty in forum LCD/Display
    Replies: 5
    Last Post: 03-12-2002, 05:46 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