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Is it the siren, or the speaker?


 
Post new topic   Reply to topic    eLightbars.org Forum -> Non-lighting warning equipment
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Firetom830
Member
Member


Joined: 24 Feb 2008
Posts: 35
Location: Olivet, MI
PostPosted: Tue 11-Nov-2008 09:47    Post subject: Is it the siren, or the speaker? Reply with quote
I have a Fed Sig MS4000 compact siren with a dynamax speaker. The other day it cut out half way to the station. Evil or Very Mad If I listen closely, I can barely hear the siren through the speaker. So...is it the siren or the speaker?
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rescue_oz
Frequent Poster


Joined: 21 Aug 2005
Posts: 1706
Location: Sydney Australia
PostPosted: Tue 11-Nov-2008 13:42    Post subject: Reply with quote
Yes, without testing with a known good speaker (the next logical step) it could be either but more likely the siren.
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Lightguy
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Joined: 12 Oct 2005
Posts: 26
Location: P.G Co. MD
PostPosted: Tue 11-Nov-2008 14:42    Post subject: Reply with quote
Make sure you are hearing the faint noise through the speaker. It could be coming from the siren box When the speaker goes, sometimes you can still hear the siren tones faintly from the siren box itself. It just has no amplification b/c the speaker is blown. Or, the speaker wire may have come loose, or pulled out. Check the speaker wires through the firewall as well. May have melted if not properly routed.
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Firetom830
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Joined: 24 Feb 2008
Posts: 35
Location: Olivet, MI
PostPosted: Tue 11-Nov-2008 21:29    Post subject: Reply with quote
Ok, my next step was to try and borrow a speaker to narrow it down. I'm sure that I heard it through the speaker, and I'm 99%(1% left for murphy) sure it's not a wiring issue(I am after all an electrician Idea ). I just wasn't sure if it could be narrowed down to the speaker because I could still hear faint siren sounds through it.
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rescue_oz
Frequent Poster


Joined: 21 Aug 2005
Posts: 1706
Location: Sydney Australia
PostPosted: Wed 12-Nov-2008 01:25    Post subject: Reply with quote
Easiest way is to try the speaker first just replacing the current speaker and if there is no difference try at the output of the siren box, that will give you a conclusive result.
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