Buzzing Subwoofer

[castehard]

Hi

It is normal that subwoofer is buzzing. Can I do something to stop the noise?

Please help this is really annoying.

[TheFlyingTraut]

Bad cable grounds?

[castehard]

12 hours ago, TheFlyingTraut said:

Bad cable grounds?

I read about it, how to check that?

[circeseye]

first try a different cable.....if it still occurs wiggle where the cable connects to sub or source, if that changes then the connector solder on board has broke loose..only fix there would be to open up to access the board and retouch the solder joints.

only other thing i can think of would be amp ground failing again a solder joint somewhere broke

[cracmeister]

It could be the cable not being isulated very well and some interference happening at some level. 

 

Did you change cable or subwoofer or receiver recently? 

Maybe the connectors came loose or similar. 

There's a lot of possibilities

[castehard]

1 hour ago, circeseye said:

first try a different cable.....if it still occurs wiggle where the cable connects to sub or source, if that changes then the connector solder on board has broke loose..only fix there would be to open up to access the board and retouch the solder joints.

only other thing i can think of would be amp ground failing again a solder joint somewhere broke

Different cable - you mean cable that connect sub to power source? Because this cable is permanently connected to the sub (bottom cable on photo). Sorry for mistakes - english isn't my primary language.

[circeseye]

5 hours ago, castehard said:

Different cable - you mean cable that connect sub to power source? Because this cable is permanently connected to the sub (bottom cable on photo). Sorry for mistakes - english isn't my primary language.

audio cables.... the rca's ... the cables can be bad or the jacks

question...your using 2 rca cables for the sub....is the subs amp powering other speakers?

make and model?

 

 

[TheFlyingTraut]

Unplug the white or red from the sub and see what happens. And just try to replace what's there to see if swapping cables work. Should be something simple.

[castehard]

4 hours ago, circeseye said:

audio cables.... the rca's ... the cables can be bad or the jacks

question...your using 2 rca cables for the sub....is the subs amp powering other speakers?

make and model?

 

 

I'm using 2 pairs of rca because I have 2 speakers and each speaker have left and right sound cable. I think sub powering the speaker, speakers only have rca cables. I'm using TRACER CITY 2.1 (TRAGLO43807)

[castehard]

2 hours ago, TheFlyingTraut said:

Unplug the white or red from the sub and see what happens. And just try to replace what's there to see if swapping cables work. Should be something simple.

When unplugged or replaced sub still buzzing

[circeseye]

49 minutes ago, castehard said:

When unplugged or replaced sub still buzzing

ok unplug both the satellite speakers and the inputs..if buzzing stops put each cable in, when buzzing starts its that cable

 

when turning the front knobs does the static (crackle) get worse as you move them? is so get electric cleaner, place sub so knobs are facing up, remove knobs light spray at bottom of knob pole and spin the knobs back and forth (if your lucky this will clean the contacts without opening up sub and doing it from the inside)

 

if not knobs and still buzzing after both input and output cables are disconnected then your amp in the sub is messing up...you would have to take the back panel off to get to the amp and look over its circuit board for bad solder joints and such..but if youve never did this before can be kind of a pain to look for problems

so if all rcas are removed and it still buzzes and your not confident to do circuit board work you may be in the market for a new system

[castehard]

14 minutes ago, circeseye said:

ok unplug both the satellite speakers and the inputs..if buzzing stops put each cable in when buzzing starts its that cable

 

when turning the front knobs does the static (crackle) get worse as you move them? is so get electric cleaner, place sub so knobs are facing up, remove knobs light spray at bottom of knob pole and spin the knobs back and forth (if your lucky this will clean the contacts without opening up sub and doing it from the inside)

 

if not knobs and still buzzing after both input and output cables are disconnected then your amp in the sub is messing up...you would have to take the back panel off to get to the amp and look over its circuit board for bad solder joints and such..but if youve never did this before can be kind of a pain to look for problems

so if all rcas are removed and it still buzzes and your not confident to do circuit board work you may be in the market for a new system

It still buzzing even without rcas. I'm going to try take off the back panel off later

[Derkoli]

On 7/22/2019 at 8:19 AM, castehard said:

It still buzzing even without rcas. I'm going to try take off the back panel off later

If you do this do not touch the power supply area, or any capacitors. I've gotten a pretty nasty shock off one before. Not fun, and they can be lethal.

[TheFlyingTraut]

OP still alive? 

[castehard]

On 7/31/2019 at 4:33 PM, TheFlyingTraut said:

OP still alive? 

Yeah, I just been busy

[Bitter]

I had a KLH sub that would just buzz all the time it was powered, the amp was bad. I was able to replace it with a different plate amp from Parts Express and it's been happily rumbling away for years since then!