1. Sign-up to become a member, and most of the ads you see will disappear. It only takes 30 seconds to sign up, so join the discussion today!
    Dismiss Notice

HELP Nasty Hum from Sub

Discussion in 'Archived Threads 2001-2004' started by JimmyAGR, Aug 25, 2002.

  1. JimmyAGR

    JimmyAGR Auditioning

    Joined:
    May 28, 2002
    Messages:
    12
    Likes Received:
    0
    Trophy Points:
    0
    I have a JBL PSB 12 sub that is making a nasty LOUD hum. It's only about 2 months old...[​IMG] Has anyone else had this problem? If so is it common? It was working fine till yesterday. Now when I power it on it just gets a humming.
    Thanks, Jimmy
     
  2. Bob McElfresh

    Bob McElfresh Producer

    Joined:
    May 22, 1999
    Messages:
    5,182
    Likes Received:
    0
    Trophy Points:
    0
    If this suddenly started happening, check your sub cable. Sounds like it pulled loose.
     
  3. GrantM

    GrantM Stunt Coordinator

    Joined:
    Sep 5, 2001
    Messages:
    109
    Likes Received:
    0
    Trophy Points:
    0
    I don't know if this applies here, but i've seen this mentioned in my SVS documentation, and in a lot of SVS threads. It seems that some ground loops in the power supply can cause the sub to hum. they recommend getting a 3 prong -> 2 prong power plug adatper (available anywhere for less than a $1, i think) for your sub amp's power cord. that eliminates the ground loop.
     
  4. anthony_b

    anthony_b Screenwriter

    Joined:
    Aug 18, 2000
    Messages:
    1,073
    Likes Received:
    4
    Trophy Points:
    110
    I had this happen, and it was a loose cable..[​IMG]
     
  5. JimmyAGR

    JimmyAGR Auditioning

    Joined:
    May 28, 2002
    Messages:
    12
    Likes Received:
    0
    Trophy Points:
    0
    Thanks guys for your thoughts. I checked the cable first and it was tight. I then hooked it up to a different outlet and it still had a loud hum. This was without being hooked up to the rec. at all. So now it's in the shop, should be about 2 weeks I was told.
     

Share This Page