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April 5, 2017, 10:04 AM #1
- Join Date
- Jun 2013
- Posts
- 1,068
How to isolate cable box to eliminate hum
I was walking around using an analyser app on my iPhone and noticed a big bump at 125hz. This was in a quiet house — except the two damn Viking fridges that are always running.
Then when I was in my new music room installing recessed ceiling lights I heard it again, in one corner of the room. So I went on a mission with the iPhone app running. Upstairs, above my music room is our main family room with the flat panel TV sitting on a canbinet/console that houses the reciever, xfinity box, etc.
Turns out the Xfinity box is the culprit, just sitting there with its hard drives turning, it emits a little white noise but also this annoying 125 hz hum that seems resonates with the cabinet.
Any ideas how to isolate this device so I don't get the hum?
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April 5, 2017, 12:37 PM #2
- Join Date
- May 2013
- Posts
- 623
Re: How to isolate cable box to eliminate hum
Hi Bob,
Something like this maybe?
https://www.amazon.com/Isolate-Sorbo.../dp/B0042U8P9C
or this
https://www.amazon.com/Isolate-Sorbo.../dp/B0042U92TE
?
HTH!
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April 5, 2017, 01:40 PM #3
Re: How to isolate cable box to eliminate hum
If going for Sorbothane, you can buy 1 foot squares from McMaster Carr and cut them yourself for lots less.
You need to use a straight edge and a new utility blade to cut it. I bought a few 1/2 inch slabs and cut 2" squares for use under everything-----------------
Brian
Main System - Rotel RCD-1572 / Rega P3 > Luxman 505UX Mark II > Fyne Audio F502SPs > Synergistic Cables
Secondary - OPPO 93 > VAC CLA 1 MKII Pre > Odyssey Stratos > Dynaudio Audience 82s > Tara Labs Cables
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April 13, 2017, 02:39 PM #4
- Join Date
- Jun 2013
- Posts
- 1,068
Re: How to isolate cable box to eliminate hum
Here's what I got... and that 125hz hum is gone!
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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April 13, 2017, 02:46 PM #5
Re: How to isolate cable box to eliminate hum
I like them Bob, and the right price compared to other similar ones. The Sorbothane can get stuck to your racks.
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Brian
Main System - Rotel RCD-1572 / Rega P3 > Luxman 505UX Mark II > Fyne Audio F502SPs > Synergistic Cables
Secondary - OPPO 93 > VAC CLA 1 MKII Pre > Odyssey Stratos > Dynaudio Audience 82s > Tara Labs Cables
AudioShark - The Best High End Audio Discussion forum.
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Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
Sincerely,
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
We are as crazy about this hobby as you are! So come on in and join us! Audioshark.org the Friendliest Audio Forum!
Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
Sincerely,
The Audioshark.org Team
12V is sufficient, and the LHY power supply Adam recommended is an excellent power supply.
Nucleus one