Help Solving JL Audio Sub Noise Issue
I have a pair of F113 v2 subs. I just noticed a very faint but steady noise coming from both subs. This only happens when the light dimming switch on the sub is on. Both subs do the same. The noise is steady (does not increase with volume). However, when the light dimming switch of the sub is off, the noise goes away.
Has anybody experienced this?
Re: Help Solving JL Audio Sub Noise Issue
Re: Help Solving JL Audio Sub Noise Issue
Quote:
Originally Posted by
Tubes
Is it a 60Hz hum?
Quite possibly.
Re: Help Solving JL Audio Sub Noise Issue
Might be something as simple as a grounding problem.
Re: Help Solving JL Audio Sub Noise Issue
Quote:
Originally Posted by
Tubes
Might be something as simple as a grounding problem.
But I wonder why it is not happening all the time? When the sub's dimming light switch is off, the noise disappears. I will have to try different outlets and see if I can replicate the problem. Thanks!!
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Re: Help Solving JL Audio Sub Noise Issue
Hello nicoff, I had a similar problem, I found the solution, it was an HDMI cable, (which I had connected to my blu ray) I called my TV provider and in the decoder they put a filter. Problem solved :) Please, if you have any HDMI cable disconnect it to see if the hum disappears. Luck. Below the filter image
https://www.audioshark.org/attachmen...id=26195&stc=1
Re: Help Solving JL Audio Sub Noise Issue
Quote:
Originally Posted by
Andik777
Hello nicoff, I had a similar problem, I found the solution, it was an HDMI cable, (which I had connected to my blu ray) I called my TV provider and in the decoder they put a filter. Problem solved :) Please, if you have any HDMI cable disconnect it to see if the hum disappears. Luck. Below the filter image
https://www.audioshark.org/attachmen...id=26195&stc=1
Thank you Andik! Will definitely look into it!
Help Solving JL Audio Sub Noise Issue
Well, it looks as if the cable box is not the problem. I disconnected the cable box altogether and I still get the noise.
Moreover, even after I turn the sub off the noise continues for a few seconds decreasing in volume until it stops. It sounds to me that the dimming switch could be connected to an internal part (probably a capacitor) that is going bad and the noise comes from that part.
I have contacted JL Audio and I am waiting to hear back.