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Jm labs sw 900

I have a JM Labs SW 900 and when it is pushed it crackles. Does this mean the speaker is likely blown? If so what is the best route to rectify the problem? Please email me at bkroobnzai@tim-privette.com

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dunnbiker
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SOURCE: I have a JM Labs Cobalt SW800 subwoofer connected

What you may be hearing is the speaker's guts bottoming out as it attempts to keep up with the amplifier, which may be clipping - a potential fatal thing to do to any speaker.

Maybe you should turn the volume down or run through the volume setup again and make the subwoofer equal in loudness to the other speakers and avoid excessive bass boost.

Posted on Feb 22, 2010

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I have ACTIVE SUBWOOFER: COBALT SW 800 from JM lab Problem is i dont have orig.power cable so i connected PC cable with same output.. Fuse blown I replaced the fuse for original and fuse blown again


Oh dear you have inadvertently caused a great deal of internal damage to the sub by connecting the wrong power cable. Fuses blow when there is an overload. Often caused by a short circuited semi-conductor. In this case it could be anywhere in the power supply section of the sub.

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What is the sw out socket for on an amplifier


SW stands for Sub-Woofer. The socket is an output channel for a Bass Speaker. If its an RCA / Phono socket, looks a little like (o) then it's for an active sub, a speaker that already has an amplifier built into it. If the socket has push-spring connections to feed wires into, it's more than likely an amplified output, meaning that your amplifier will supply a speaker with no amplifier. Hope this helps you out.

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Everytime we turn the system on it says overload, what does this mean?


hi,
speaker wire crossed over or shorted against the other wire on one of the speakers probably. check the connections behind the amp and at each speaker with a flashlight and a magnifying glass.
jm

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1 Answer

I have a JM Labs Cobalt SW800 subwoofer connected to a Yamaha RX-V2300. Recently during intense moments, esp action movies, the SW occasionally emits a loud pop; most of the time only one, but sometimes...


What you may be hearing is the speaker's guts bottoming out as it attempts to keep up with the amplifier, which may be clipping - a potential fatal thing to do to any speaker.

Maybe you should turn the volume down or run through the volume setup again and make the subwoofer equal in loudness to the other speakers and avoid excessive bass boost.

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1 Answer

I only get sound out of i speaker and the sub with Ipod through 3.5 mm jack


HI,
try an old walkman on that patch cord to diagnose if its the patch cord or the Ipod. If you get all channels on the walkman, then its the patch cord for sure, they have them at radio shack. If it still does it it may be a setting within the reciever. begin cycling through your dolby DTS settings, try all of them, might just have to run it in stereo due to a decoding error between the two. or try to re-record the problematic songs from a different mp3 source off the internet.
jm
jm

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1 Answer

I have a crackling speaker on the left port of the bass box


The crackling sound on the left port of the bass box, indicates vibrating foreign matters inside it. Just open the box and clear it up. Put the sounds on. Listen if the crackling sound is audible. If the result is ok, then, close the box, and everything is alright..
However, if the result is otherwise, then, it is due to a defective speaker that needs to be replaced.

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2 Answers

Speakers are crackling


A Few Things You Need To Check..
1. Incorrect Driver can cause this.. Go to Dell Website and Reinstall Audio Driver..
2. A pinched wire can cause this.. Removal of the case will be needed to check the speaker connection..
3. The Speaker has blown.. This will mean replacing the speaker set..To Check if you have a blown speaker or simply a "Bad" driver.. Easiest Thing To Do Is To Reinstall Windows.. Upon Reinstalling Windows It Might Load Your Audio's Default Driver.. if it does, you'll hear the Windows Tune Play Upon Boot-Up Just After Loading To Desktop...
You Might Need To Install Your Audio Driver After Reinstall Of Windows.. You Can Get Driver Either From The Restore CD or By Going To Dell And Downloading Your Specific Models Drivers..

If You Choose To Reload Windows, you can also Copy all your Drivers and Their Setup files THey Are Stored In Your C Drive... C:/

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2 Answers

Crackling


you may have played the speakers too loud and made them have effects or you have spilled something or! you have messed with the settings hope this helps!

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1 Answer

Crackling noise


if you so a test on your speakers you will find the one speaker is doing the same you must take the unit back because the speaker is faltie

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