sub making unwanted noises

busterno1 · 26th August 2007, 05:39 AM

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

richie00boy · 26th August 2007, 07:57 AM

Rumble or hum? If hum maybe the input lead is picking up mains fields.

busterno1 · 26th August 2007, 08:06 AM

its a rumble. could it be interference from another source ?

phreeky82 · 26th August 2007, 10:12 AM

Download a sine wave generator and hook up to the sub amp, probably the best way to find a fault.

26th August 2007, 05:39 AM	#1
busterno1 diyAudio Member Join Date: Mar 2003 Location: brisbane queensland	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

26th August 2007, 07:57 AM	#2
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Rumble or hum? If hum maybe the input lead is picking up mains fields. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

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26th August 2007, 08:06 AM	#3
busterno1 diyAudio Member Join Date: Mar 2003 Location: brisbane queensland	its a rumble. could it be interference from another source ?

26th August 2007, 10:12 AM	#4
phreeky82 diyAudio Member Join Date: May 2003 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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