Question about Velodyne VLF-1012 Subwoofer

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No Sound for Velodyne VLF-1012

I have had my subwoofer on Stanby mode for quite some time, but recently after playing music, realized that there was no sound coming from the sub. The green light comes on and I changed cables and settings but it still gives no sound.

Any recommendations?

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Sounds like your amp is damaged.

Posted on Jan 29, 2009

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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

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Could be one of two things.

The speaker could have a rubbing voice coil, that was the "chirp" sound

Over time, this will damage the speaker. If it shorted, then it may have blown a fuse in the amplifier section.

Any good electronics shop should be able to fix this for a reasonable cost. You also could try the place you purchased the unit from.

You could also contact Velodyne.

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My velodyne subwoofer is making "clicking" sounds and is not producing normal sound (e.g. music). What may be the problem?


You did not state what model this is.

If it is a servo controled unit, you may have a problem in the control circuit.

The models that use the servo control stystems should only be serviced by Velodyne or one of the listed service centers.

Velodyne is the only source for parts for these units.

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1 Answer

I have had my subwoofer for 6 years. It has always


One way to check the operation is to connect a source directly to the inputs of the sub.

A CD player will work fine. Connect the out puts of the CD player to the inputs on the sub. Play a CD.

If you get music from the sub, then no problems with sub.

If nothing, sub has problem.

Could be

A Dead amp.

A Dead speaker.

Velodyne products usually need to be returned to them for service.

Cost is unknown.

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Subwoofer does not play at full power


Sounds like you have an amp problem.

The only place to get this fixed is Velodyne.

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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.

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Try turning up the sub output on the onkyo.

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No sound


overheating and powering itself down... will it stay on if you play it quieter.

May 17, 2008 | Velodyne CHT-10 Subwoofer

1 Answer

Subwoofer has power but not getting sound


Some ideas.

Blown fuse in the amplifier section.
Dead amplifier
Dead speaker.

Amp is not that expensive, call Velodyne

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