Re: A frustrating audible hum in my setup, please help!
Also, is there any interference on a landline phone? Either wired or cordless.
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
rjkruk
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.
I did switch out a power supply recently for my pc but the buzz existed before and after. No electric fences I’m aware of plus out lots here are 1.5 acres, so no close neighbors. I’ve not separated my cables because of the way my AV stand is. Just way too many wires all over the place.
Re: A frustrating audible hum in my setup, please help!
One discovery which I hope is relevant. So my Parasound P7 has HT bypass which I of course use in my setup. When it’s in bypass, meaning I’m using the Yamaha CX-A5000 for volume, sources, etc, the buzz is audible like I’ve described. As soon as I switch the Parasound P7 to any source coming into it other than HT bypass, the buzz disappears completely. So for example, if I switch the P7 to my music input coming from my Schiit DAC, the buzz is gone!
Does this help narrow things down?
Re: A frustrating audible hum in my setup, please help!
WELL. NOW you tell us. If I understand you correctly, and the input to the Yamaha is not changed (same cable from the P7 to the same input on the Yamaha), then the P7 is bad, or there's a grounding issue "through" it. To be sure, can you sketch up a little diagram of the sources, the P7, the Yamaha and the interconnections?
Re: A frustrating audible hum in my setup, please help!
Are the Parasound and Yamaha on the same circuit?
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
rjkruk
Also, is there any interference on a landline phone? Either wired or cordless.
No landline phones in the house
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
rjkruk
Are the Parasound and Yamaha on the same circuit?
Yes
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
jimb
WELL. NOW you tell us. If I understand you correctly, and the input to the Yamaha is not changed (same cable from the P7 to the same input on the Yamaha), then the P7 is bad, or there's a grounding issue "through" it. To be sure, can you sketch up a little diagram of the sources, the P7, the Yamaha and the interconnections?
Sorry:)
Yes, the buzzing only disappears when a source on the p7 is selected. When it’s in HT bypass meaning my Yamaha is acting as source and going through the P7 is when the buzzing happens. I didn’t mess with any cables.
Hoping the p7 is ok! The buzz only comes through on One speaker. I’ll do my best to create a diagram
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
merrymaid520
Sorry:)
Yes, the buzzing only disappears when a source on the p7 is selected. When it’s in HT bypass meaning my Yamaha is acting as source and going through the P7 is when the buzzing happens. I didn’t mess with any cables.
Hoping the p7 is ok! The buzz only comes through on One speaker. I’ll do my best to create a diagram
I think you just need to give up and send me your equipment. :D
For the side that is humming, swap the input cables into the P7 to see if the hum follows the cable.
Also if the P7 is set to HT Bypass, and the Yamaha is off, is the hum still present?
Re: A frustrating audible hum in my setup, please help!
Quote:
Originally Posted by
curtis
I think you just need to give up and send me your equipment. :D
For the side that is humming, swap the input cables into the P7 to see if the hum follows the cable.
Also if the P7 is set to HT Bypass, and the Yamaha is off, is the hum still present?
You dont want a buzzing preamp do you:)
I will try this when I return home and report back.