Question about Velodyne FSR-12 Speaker

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I have 2 velodyne fsr 12 subs. both were taken out by PG&E power surges. One make a white noise that cuts in and out, but will still play bass when fed a signal, the other makes a loud static sound that cuts in and out.

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  • Iron
    Iron Mar 24, 2011

    Ouch, how can I help? What is the problem you need solved?

  • edubuu Mar 24, 2011

    In reply to Dunnbiker...I arrived at the conclusion the amps were shot pretty quickly. Both subs make noise with or with out any input. Velodyne does not service these subs any longer. I was hoping to find out if the IC amplifier, PN STK4040 II, could be the culprit. That amp only costs about $20 so maybe I will give it a try. Thanks for the help.



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  • Master
  • 8,546 Answers

Register and download the manual for free at

Not that it would help.

Is the white noise present in the absence of an input connection, free-floating?

The amps in both of them sound like they

Posted on Mar 24, 2011


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Well there are only a few reasons i can think of that just might be the reason behind said buzzing.

1. It may be connected to another power source ( amplified or powered supply ) or incorrectly connected. It may also be too close to said power supply.Try letting the dog (sub) out on his leash a little Drag out the manual that came with the sub, and check the correct procedure for your type of setup.
**People do read manuals still don't they ?**

2.The only other problem i have heard of is port noise in low registers. Keep the the port area clean, as it may suck up dirt, or even worse, small children!

3. However, if you're considering placing this subwoofer in a cabinet, I'd recommend allowing ample breathing room for the heat sink. This can also be done by drilling smaller holes in the cabinet ( 8-12 mm holes - with the owners permission of course) but please do remember to keep the port area clean.

4. The product ie: Velodyne DPS-12 Subwoofer, came with a bad power supply, presuming it is new, check your warranty.
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Velodyne has been making subs forever and do it well.

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