Question about Altec Lansing Audio Players & Recorders
My subwoofer makes a thumping sounds when it is turned on. How do I fix this?
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Posted on Jan 02, 2017
SOURCE: Altec Lansing VS4121 no sound
If removing and reinstalling the driver fixed your problem then there was nothing wrong with the speakes. There was probably a problem with your soundcard drivers.
That being said, you should double check that you speakers are plugged in to the right sound board connector and the power supply is plugged into the wall outlet.
Does you computer have a headphone jack? If it does, you might try plugging a headset into it to see if you can hear sound there. If you do then you'll know the soundboard is working properly and maybe the speakers really are part of the problem. CD/DVD drives usually have a headset jack, but this will only work if a cable was run inside the computer from the CD/DVD drive to either the soundboard or motherboard.
What kind of computer do you have? Do you know if you have on board sound or a seperate sound board?
Posted on Nov 19, 2007
The first thing you can do is go to www.retrevo.com to download the manual. Secondly all you have to do is match the colors of the wires to the imports in the back. You have five speakers. Two have gray wires, two have red and one has blue. If you also notice each speaker has two wires. One a solid color, the other striped with black. For instance, put the solid red wire into the red import and the red wire with the black stripe into the black import. Repeat this with all the other wires. The easiest way to hook it up to your computer or laptop is to take one of the aux wires (the wires with the yellow/green/black tips). It doesn't matter which one. Put into you headphone import on your computer or laptop. Then put the other side into the Aux on the subwoofer. Located on the front. Turn on the power on the back. Then hit the aux button on the remote. That should work....
If you have any other questions or need any more help you can contact me firstname.lastname@example.org
Posted on Jan 26, 2009
Hello there..Thats normal only if your sub volume and the pre amp is turned up..Your amp is the cause of the speaker jump..Turn amp volume sub level down a few and check your wire from sub to amp..If all of that is good is a normal operation for pre amp warm up in sub if level is turn to max..Try unplugging amp freom sub then turn sub on stand alone(just sub outlet plugged in and no wires from base amp plugged in..If sub stops the its the amp making the problem..If it still is there then the pre amp is either dusty on inside or the outlet plug that it is plugged in doesnt have a good ground..Hope these help to solve your problem..Have a great day...
Posted on Apr 03, 2009
You could only verify this by gaining access to the rear of the speaker but I suspect that the 'spider' has come unglued.
This is a device that surrounds the lower (inner) end of the cone to provide a second point of suspension; without this, the voice coil can slap against the side or bottom of the magnet structure.
I don't think a repair is an economical choice for these; repairs only make sense for 'professional' speakers that cost several hundred dollars to replace.
Posted on Apr 13, 2009
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