Question about Velodyne DLS-3750 Subwoofer
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
Posted on May 04, 2013
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Posted on Jan 02, 2017
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
One of two things may be going on.
The amp has a fuse mounted on the PC board. The fuse may be blown.
The speaker may be bad. that may have blown the fuse.
You can test the speaker with a "D" battery.
Take the amp section out of the back, disconnect the speaker leads.
Touch the speaker leads to the poles of the battery. it should make a little thump and the cone should move freely.
Contact Velodyne for service.
Posted on Dec 30, 2009
Tips for a great answer:
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you're looking for a loud subwoofer you'll need to consider sensitivity,
enclosure type and available power. You'll need to start with a subwoofer with
a high efficiency (sensitivity) rating housed in a ported or band pass box.
Power the sub with an amplifier that has a power output that is within your sub's recommended power range. You'll achieve the slam you're listening for. Using an amplifier with a bass boost control can also help.
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