Question about Velodyne DPS-12 Subwoofer

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Velodyne subwoofer I was watching a movie and the subwoofer just began to give off a loud humm

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First make sure that the cables are properly connected up. Make sure that the output of the amplifier feeding the sub is working properly and has no faults.

If the above is okay, it is possible that the power supply in the sub, and or the output stage has a failure. In this case the sub will require shop service to have it working again.

Jerry G.

Posted on Jul 03, 2008

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Velodyne ct100 loud humming +speaker drown backwards.Can I fix at home


The loud humming could be caused by a cable on the input that is not grounded. It could also be caused by some sort of power supply failure.

Feb 10, 2016 | Velodyne Speakers & Subwoofers

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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...


Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Velodyne-FSR-12-Subwoofers-manual/id/866ag600/t/2/

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

Mar 24, 2011 | Velodyne FSR-12 Speaker

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Loud grating, tapping , rattling interference noise. impossible to watch a movie


maybe the cable you use to connect the subwoofer to the receiver is bad.
does it work better for music?

Jan 02, 2010 | Velodyne SPL-1000 Subwoofer

1 Answer

Gets hot and cuts off have to reset it all the


You did not give the model number

Make sure you have a space around the unit for air flow to the heat sinks.

The amp IC may be going bad. Overheating problems can be hard to pinpoint.


Contact Velodyne for service.

Jul 05, 2009 | Velodyne Speakers & Subwoofers

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Extreme distortion with Velodyne SPL 800II


Woofers are subjected to relatively high degrees of acceleration which can cause a poorly built voice coil or spider (an additional support located at the junction of voice coil and cone) to break away from the cone or the surround at the edges of the cone may have dissolved. Cigarette smoke is death to the common foam-type suround and once it is no longer intact, the cone can slap on the frame edges. 
Only the very expensive band/concert-type speakers are worth repairing. Check on eBay for the right size replacement; they atart below $20 US.
High quality speakers actually come with a warranty but then, the Chinese company that built them may not outlast the warranty.

Apr 27, 2009 | Velodyne SPL-800 Subwoofer

1 Answer

15 inch velodyne subwoofer making a loud popping sound


If you have changed the signal source, then these may not be the problem at all, it may be that you have the sub output set to low on your processor.


This may be one of these problems.

It could be the "auto on" circuit.
If you change the switch on the back of the unit to always on does it still do this? if not then it is the auto on circuit that is the problem.

The driver mounted servo unit is starting to fail.

A cap in the amplifier input section may be going bad.

You nwill need to contact Velodyne for repair of the unit.

Feb 20, 2009 | Velodyne HGS-15 Subwoofer

1 Answer

Amplifier for my velodyne cht-8 is making noises



Yes the amp section can be peplaced.

Call Velodyne, the amps are not that expensive.

Jan 01, 2009 | Velodyne CHT-8 Subwoofer

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