RT1000p Buzzing
centextom
Posts: 6
Howdy Yall! Im new here and this has probably been addressed before, but Im doing it again {sorry} Both speakers buzz when plugged into the wall. Ive just got them hooked up through the regular speaker inputs. No sub hookups, just the regular 2wire l&r connection. When I first plug them in they dont buzz, but as soon as I ply anything through tem they start buzzing!
Post edited by centextom on
Comments
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... Both speakers buzz when plugged into the wall. ....
Welcome to Club Polk.
Did you actually plug the speakers " into the wall "
like a wall A.C. outlet ? -
Yes, they are in a dedicated ac wall plug.
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yes.
built in powered sub woofers.
sorry my misunderstanding
new, used ? -
I bought them new 10 or so years ago. Ive got an old Sony DA30Es that I run a pair of Klipsch KG4s through for my a speakers, and my Polks through the b channel.
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this one obvious but had to confirm
have you tried a completely different
wall outlet to rule out AC induced noises / buzzing
and swap speakers
and swap channels -
Yes Ive done that. The speakers work fine with no buzzing {or bass} until I plug them in, then the buzzing begins.
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tried a different receiver/amp?
any cable CATV inputs
you have confirmed specifically it is the power subwoofer
and the buzzing is 'rhythmic' with the music .
searching here I did find this thread
http://www.polkaudio.com/forums/showthread.php?t=54761
you may not like the recommendation but there it is..... -
Tried all that! Im guessing its the power supply or something, but Im not sure. Thats why I posted it here hoping it was an easy fix or something common.
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you might have missed my edit
i added this link
http://www.polkaudio.com/forums/showthread.php?t=54761 -
Yea, thats not what I was wanting to see! Thanks for your help. Anyone else?
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here's another older thread
says the same
send the subwoofer amp back for repair
only thing that gets me is how does both sides go out the same time ?
common defect ?
check or swap your interconnects , speaker wires
http://www.polkaudio.com/forums/showthread.php?t=74724 -
Sounds like a common ground loop problem. Since you had these for 10 years, think of what you may have changed recently as far as new gear,wires,cable, etc. Cable boxes are notorious for introducing hum or buzz. Finding the culprit can be a bit of trial and error. Do a search on ground loop and you'll have plenty to read up on.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
Wouldn't he hear the group loop hum even if nothing's playing?Display: Sony 42" LCD
Sources: Harman Kardon DVD-27,
Panasonic DMP-BDT110 blu ray player
AVR: Sony STR-DA2400ES
Amps: Sonance Sonamp 260(fronts),
Kenwood KM-894(surrounds)
Fronts: NHT 2.5
Center: NHT VS-1.2A
Surrounds: NHT Super One
Subwoofer: SVS PB10-ISD -
Let me guess...
1. Is it a) a clean sounding 60hz "hum" or b) a dirty "buzz"?
2. Does the hum go away when you disconnect the speaker wire but leave the AC power plugged in?
3. Does the it get louder when you turn the volume knob up or stay constant?
If you answered (b) to the first question or "no" to the second questions then the problem is in the sub amplifier itself.
I suspect the problem you are having is the same as the problem I had with mine, since both of the amplifiers broke independently of each other with the exact same problem. In this case, you are right about the problem coming from the power supply.
I think you can get them replaced for a bunch of money. Or you can do it yourself for around $20 if you know how to use a soldering iron.
Here's a link to a thread where I describe the process: http://www.polkaudio.com/forums/showthread.php?t=96384
Let me know if you need any help or anything.
