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Old 20th December 2015, 04:07 PM   #1
bwolf is offline bwolf  India
diyAudio Member
Join Date: Dec 2015
Default Speakers make crackling and popping sounds

purchased sure tpa3110 2*8w amplifier board
connected to old unbranded 4ohm 10 w*2 spkrs

I am getting crackling sound when switching ON nearby sound system, lights,any other equipment... also Im getting very high cracking sound when my home running on Invertr (ups ).
how to fix this problem kindly help me ...
I am powering this with 15w 0.8amp switching power supply
*no crackling sound coming when Muted in PC,
* no cracking sound //chirrk// there is no input connected.
( these speakers connected to PC)

sry for my bad english
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Old 20th December 2015, 04:39 PM   #2
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Join Date: Oct 2007
Please try a different power supply. The problem is somewhat related to your PC and power supply.
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Old 21st December 2015, 03:33 PM   #3
bwolf is offline bwolf  India
diyAudio Member
Join Date: Dec 2015
tq im noob :/ I can identify components, soldering job is ok.

any suggestions for power supply I want to build
regulated ,stable power supply help me with circuit diagram.
12V >
1Amp >

Last edited by bwolf; 21st December 2015 at 03:37 PM.
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