Question about Velodyne DLS-3750 Subwoofer

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Velodyne dls-3750 subwoofer lights on no sound

I was doing a sound setup with the receiver one a died. The blue light is still on the remote appears to work because the light flash appropriately but there is no sound. Unpluged it let is cool and tried again samething no sound.

Posted by Anonymous on


5 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Major buzz/Humming sound coming from my subwoofer

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.
(not very likely - see also scenarios 1, 2 or 3.)

Velodyne has been making subs forever and do it well.

Posted on Jan 17, 2008

  • 151 Answers

SOURCE: how to connect pioneer reviever to velodyne subwoofer

Look for the sub pre out on the back of your amp and connect a sub cable to this and next to the LFE or phono type input on the back of the sub ,if it has two inputs left and right pick the left side ,set the cross over to suit your system and speakers,if you are not sure set the cross over to 80 hertz,this is a thx standard.
hope this helps.

Posted on Jul 03, 2008

  • 124 Answers

SOURCE: My Velodyne CT 80 powered subwoofer does not power on?

Fuse in amp may be blown or the amp is dead

Contact Velodyne, the replacment amp is not very expensive

Posted on Jan 04, 2009

  • 124 Answers

SOURCE: My velodyne subwoofer is making

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.

Posted on Nov 11, 2009

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1 Answer

Subwoofer inop

The blue power light merely indicates that house power is getting to the sub. My guess is that the internal power supply reacted poorly to the on-again-off-again power application and something failed

May 04, 2013 | Velodyne DLS-3750 Subwoofer

1 Answer

Noooo.i think that this is just a fraud, and the warranty, doesn't exist.. this is a fraud made..

Velodyne exists. I've done repairs on their gear. They're rediculously hard to get any answers out of. But they'll so anything they can to void the warranty.

Sep 09, 2011 | Velodyne DLS-3750 Subwoofer

1 Answer

How much does an output plug cost?

Is this "output plug" for sound/audio or video?

Because such output plug varies in sizes and the cost as well

Please bring the output plug to your nearest local electronic store to check the price

Thank you

Sep 04, 2011 | Velodyne DLS-3500 Subwoofer

1 Answer

Remote does not seem to want to wortk any more. Batteries are up to power but when the button is pressed - no light from unit.

remote consoles dont work when:
a) battery is low
b) carbon contacts are dirty
c) ir diode is bad
d) ceramic oscillator is faulty.
if u have a cell phone with built in camera, access ur camera and point ur remote towards the camera lens, u wil be able to see blinking light emitted from the remote on your phone screen. (or any other digital camera) if u dont see any light from ur remote, it cud be any one of the above faults. it can be repaired. u can try cleaning the carbon tracks with any cleaning solvent (u have to open ur remote of course). otherwise take it to any qualified technician. costs very little.

Apr 13, 2010 | Velodyne DLS-3750 Subwoofer

1 Answer

Connecting speaker to amp

not enough info in the post

If you are asking about the basic set-up for your system.

Please read your owners manual. It does have a good section on how to install the unit in your system.

Dec 28, 2009 | Velodyne DLS-3750 Subwoofer

1 Answer

No sound

1. Verify unit is plugged in and power outlet used is active.
2. Is power switch on?
3. Is auto turn on/off set properly?
4. Is unit receiving an input signal from your source?
5. Have all controls on subwoofer (volume, crossover, phase, etc.) been
properly set?
6. If unit has been running at high levels, one of the protection circuits may be engaged.
7. Has the built-in amplifier overheated?

Mar 22, 2009 | Velodyne DLS-3500 Subwoofer

1 Answer

No bass...

One of a few things.

The fuse inside the amplifier section is blown.
The amplifier has died
The speaker is dead.

Best to return to the place you purchased the unit or contact Velodyne for service.

Dec 16, 2008 | Velodyne VX-10 Subwoofer

1 Answer

Output stage bad

Only place for parts and service is Velodyne.

Oct 20, 2008 | Velodyne DLS-3500 Subwoofer

1 Answer

Power problem

have the power supply check out you have an open connection on your regulayor.that clicking sound comes from the relay.good luck

Jun 04, 2007 | Velodyne DLS-3750 Subwoofer

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