Any electronic geniuses out there ?

R

rgp

Well-known Member
Location
Milford,OH
I have a TV/stereo setup where the TV plays through the stereo.

Last night I kept hearing an odd noise, thought it was outside. It was not. I turned the TV off, no help, I turned the stereo off,no help. I turned everything off ...... No help !

Cut to the chase & question. With everything off, I get 'random' noise from the sub-woofer ?

Anyone ever heard of that ? Last night, [so i could sleep] ...... I had to turn off the sub-woofer independently .

Anyone ever had a s/woofer go bad ? It's not like I listen to head banging hard rock music on it, hell most of what i listen to is damn near elevator music, that and TV at normal volume .
 

you may have a loose soldier joint on a wire, you can get what is called audio rectification that way... it is similar to what happens with a crystal radio where the cats whisker is touching the galena. people with loose metal fillings in their teeth can sometimes tune in a radio station the same way.
 
cdestroyer said:
you may have a loose soldier joint on a wire, you can get what is called audio rectification that way... it is similar to what happens with a crystal radio where the cats whisker is touching the galena. people with loose metal fillings in their teeth can sometimes tune in a radio station the same way.
Click to expand...

Humm ....... sounds possible, I wonder how in the world it would have come loose ?

The whole system is solid quality/higher end . And not very old. The stereo {Denon} approximately 10-12 years, and the TV {LG} , no more than one year .
 

Overheating or over or under powering, i.e., you have a 1000 watt speaker, but you use a 50 watt amp, can damage a woofer. Using a bass booster on high volume, or turning on the booster while the volume is on high, and incorrect or bad wiring can too. Woofers pretty sensitive.

btw, replacing a bad woofer is a lot cheaper than replacing a speaker.
 
Murrmurr said:
Overheating or over or under powering, i.e., you have a 1000 watt speaker, but you use a 50 watt amp, can damage a woofer. Using a bass booster on high volume, or turning on the booster while the volume is on high, and incorrect or bad wiring can too. Woofers pretty sensitive.

btw, replacing a bad woofer is a lot cheaper than replacing a speaker.
Click to expand...

Well I sorted it out, [process of elimination] and it is the s/woofer. It is a powered woofer, and just turning it off corrected the problem/cleared the noise.

I'll take the back off ..... [yes I'll unplug it first] and see if I notice anything obvious .

If not, guess I'll start shopping. It sounds fine as it [now] is. I don't play anything loud, so maybe i don't even need the thing. It sounds a-bit different, [milder bass] but I suppose I might get used too that.
 
Sometimes plug and jack connectors can get oxidized over time and won't make a good connection. You could pull out and re-insert a number of times.
 
Chet said:
Sometimes plug and jack connectors can get oxidized over time and won't make a good connection. You could pull out and re-insert a number of times.
Click to expand...

Yeah, actually I have a series of small brushes for that [electrical connectors].............. might try just cleaning them.
 
You must log in or register to reply here.

Back
Top