Soundproofing for DVR "Hum"

[kitjv]

I recently moved to another town & signed up for broadband TV service. The DVR that was provided has a very distracting "hum". Since the DVR is located in a cabinet, the echoing tends to amplify the noise. Can someone suggest a soundproofing material to help absorb the noise? Thank you kindly.

 

[its phillip]

I'm guessing that you're probably hearing the hard drive or some sort of fan. You could try putting something under the dvr like a big mouse pad or some other foam like this:
Amazon.com: Shop Fox W1322 Anti-Vibration Pad 24-Inch by 36-Inch, Black: Home Improvement

 

[ski2xblack]

My DVR hard drive hums like mad too, even when the unit is off. I too used an old mouse pad to make isolation feet, and something weighty on top at least quells the chassis resonance, but when the tv is off and the music is on, the cable box/DVR is generally unplugged.

You may be able to help the cabinet resonance with some Dynamat or equivalent. Hardware stores often carry it (in the plumbing section, it's used on stainless steel sinks) for pretty cheap.

 

[Speedskater]

I use:
Sorbothane Hemisphere Foot Bumpers. About $4.50 each.
http://www.edmundoptics.com/optomechanics/optical-breadboard-components-laboratory-tables/laboratory-tables-breadboards/sorbothane-mounts/1618