A frustrating audible hum in my setup, please help!
Trying to eliminate a very annoying 120 hz (I think, seems higher than your typical 60 hz hum) buzzing sound coming through my setup. I’ve tried tons of things, new surge protectors, different outlets, hum x, etc. it’s a buzz that come on every 6-8 seconds, buzzes for a few then goes off, never stopping. It does disappear on occasion and other times it’s less pronounced. Its not the amp, ruled that out long ago.
My setup is very complex.
Ascend speaks obviously;)
Yamaha cx5000 pre
Parasound amp a21
Parasound pre p7
Behringer fbd
Dual subs Rythmik
Custom built pc for streaming movies and Jriver music with 200 watt external power supply (hd Plex)
Schiit dac
Directv box
Sony ps3
Outlaw 7 ch amp for surrounds and zone speakers
I’ve tried unplugging cables many times and can’t seem to locate the root of the problem.
Any suggestions on where to begin?
Thanks.
Re: A frustrating audible hum in my setup, please help!
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
rjkruk
Not that I am aware of.
Re: A frustrating audible hum in my setup, please help!
did you try moving the cable box/disconnecting?
any dimmer switches?
Re: A frustrating audible hum in my setup, please help!
Live near any radar or other transmission systems?
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
racrawford65
did you try moving the cable box/disconnecting?
any dimmer switches?
Move directv box where?
There may be a dimmer on that circuit, I’ll check.
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
jimb
Live near any radar or other transmission systems?
Nope, pretty rural by me.
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
merrymaid520
Move directv box where?
There may be a dimmer on that circuit, I’ll check.
cable box - disconnect from your system entirely and away from other components. I've seen on other forums (don't recall which) that in some cases cable boxes were the source of noise.
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
racrawford65
cable box - disconnect from your system entirely and away from other components. I've seen on other forums (don't recall which) that in some cases cable boxes were the source of noise.
Well I unplugged the satellite feed (rg6 cable) coming into the directv box and unplugged it’s power source and nothing changed. I also confirmed the outlet that all my equipment is plugged into is a dedicated one with nothing else on it. Still that darn hum/buzz.
Re: A frustrating audible hum in my setup, please help!
Did this just start recently and have you added any new electric / electronics lately?
Your or neighbors put in any electric fence? Power and signal cables for audio separated?
I would check with your electric company and ask if they have made any changes.