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Old 26th August 2007, 05:39 AM   #1
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Join Date: Mar 2003
Location: brisbane queensland
Default sub making unwanted noises

have a shivas sub matched with a 350w plate amp
I have the plate amp in a separate box
my wife rearranged the lounge room the other day . & moved the power supply .

now my sub has a strange rumble only a certain frequencys other wise it works fine .I have checked all the connection .

does anyone have any ideas thanks
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Old 26th August 2007, 07:57 AM   #2
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Location: Gloucestershire, England, UK
Rumble or hum? If hum maybe the input lead is picking up mains fields.
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Old 26th August 2007, 08:06 AM   #3
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Location: brisbane queensland
its a rumble. could it be interference from another source ?
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Old 26th August 2007, 10:12 AM   #4
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Location: Townsville, Australia
Download a sine wave generator and hook up to the sub amp, probably the best way to find a fault.
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