Dirty power? hum/buzz...Help.. New Rythmik's - Page 3 - AVS Forum
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post #61 of 76 Old 03-20-2012, 08:24 PM
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Sorry if I missed it, but which model Rythmik's do you have?
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post #62 of 76 Old 03-20-2012, 08:27 PM - Thread Starter
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DS1510 h600peq3 sealed
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post #63 of 76 Old 03-20-2012, 09:13 PM - Thread Starter
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Here is an update of what has been done and what I can think to still do.

List what what I have tried

disconnected rca plug from subs input.
disconnected other stereo/tv devices from power/coax except the subs
tried cheater plugs
tried other outlets
turned off all other breakers to the house except subwoofer circuit
tried a power conditioner with 80db RFI/EMI filtering


things left to try

take subs to friends house and wait to see if the buzz returns
borrow my father in laws HSU ULS15 and see if it buzzes at my house
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post #64 of 76 Old 03-20-2012, 10:59 PM
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Quote:
Originally Posted by turboswede95 View Post

Here is an update of what has been done and what I can think to still do.

List what what I have tried

disconnected rca plug from subs input.
disconnected other stereo/tv devices from power/coax except the subs
tried cheater plugs
tried other outlets
turned off all other breakers to the house except subwoofer circuit
tried a power conditioner with 80db RFI/EMI filtering


things left to try

take subs to friends house and wait to see if the buzz returns
borrow my father in laws HSU ULS15 and see if it buzzes at my house

you don't happen to have a light dimmer installed somewhere do you?
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post #65 of 76 Old 03-20-2012, 11:41 PM
 
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^^I read somewhere it has variable resistance that might or can produce some noise into the electrical mains.
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post #66 of 76 Old 03-21-2012, 06:41 AM - Thread Starter
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Quote:
Originally Posted by cat-222ASR View Post

^^I read somewhere it has variable resistance that might or can produce some noise into the electrical mains.

I do have some dimmers but they have had no effect on the buzzing.
Plus when all the other breakers are off they are disconnected(no power) and the sub still buzzes. As a last resort I guess I could take them out just to be sure.
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post #67 of 76 Old 03-21-2012, 09:17 AM
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humbuster III. i remember that buzz in my amp driving me insane. i had an electrician out and was ready to do major rewiring, dedicated circuits etc and thought i'd give this a shot first...and it worked. audio advisor has 30 day satisfaction guarantee, or they pop up used on the 'gon from time to time.
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post #68 of 76 Old 03-21-2012, 11:28 AM - Thread Starter
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Quote:
Originally Posted by speavler View Post

humbuster III. i remember that buzz in my amp driving me insane. i had an electrician out and was ready to do major rewiring, dedicated circuits etc and thought i'd give this a shot first...and it worked. audio advisor has 30 day satisfaction guarantee, or they pop up used on the 'gon from time to time.

I can't seem to find them for sale.
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post #69 of 76 Old 03-21-2012, 04:10 PM
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Have you tried the sub on a different circuit in your house?
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post #70 of 76 Old 03-21-2012, 04:40 PM - Thread Starter
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Quote:
Originally Posted by hoffmand34 View Post

Have you tried the sub on a different circuit in your house?

several
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post #71 of 76 Old 03-21-2012, 04:54 PM - Thread Starter
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UPDATE!

I borrowed a HSU ULS15 and plugged in just the power same as the two rythimks. The 2 rythmiks amps buzzed and the hsu was quiet.

So either the two rythmik amps are bad and decide to buzz or be silent in sync.?????

Or the rythmik amps are more sensitive to something in my power than the hsu.

Last test will be to take the rythmiks to another house.
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post #72 of 76 Old 03-22-2012, 10:44 AM
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Does the buzzing occur on both subs simultaneously or independantly?

When you hear a buzz on one, do you always hear a buzz on the other?
And when they are quiet, are they both quiet?
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post #73 of 76 Old 03-22-2012, 01:12 PM - Thread Starter
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Quote:
Originally Posted by brendan_dj View Post

Does the buzzing occur on both subs simultaneously or independantly?

When you hear a buzz on one, do you always hear a buzz on the other?
And when they are quiet, are they both quiet?

both transformers buzz at the same time, and silent at the same time
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post #74 of 76 Old 03-22-2012, 03:56 PM - Thread Starter
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I have had a couple people suggest using a dc filter or dc blocker.
I don't have the electrical knowhow to make one. Does anyone have a link to where I could buy one that would work on electrical(not coax)? I have looked around but have yet to find anything.

I didn't realize that the HSU sub doesn't have a transformer so that test really didn't tell me much.

Rythmik is sending me a new amp but I am still curious if dc voltage is the problem
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post #75 of 76 Old 04-02-2012, 05:07 PM
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Hi Turboswede,

Full credit to Rythmik Audio. My problem has been resolved. Their customer service is second to none. I will definitely recommend their subwoofers to anybody. Not just for their great product, but also their excellent and personal after-sales service.

Any updates on your situation?

regards

Brendan
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post #76 of 76 Old 04-03-2012, 09:38 AM - Thread Starter
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Rythmik sent me a select amp that definitely is quiet when the "surge" is gone. However the transformers still buzz when I get the "dc offset". I purchased a Emotiva cmx2 that has fixed the problem!! They have gone an entire day with no buzzing of any kind. I am grateful that Emotiva produced this item but wished they would have made it out of plastic to cut the cost..

I also called Rocky Mtn. Power and they basically told me there is no such thing as DC offset in the AC system. Even though I have taken DC readings of .34 Vdc when the buzzing occurred. I was basically just laughed at and told it wasn't their problem. Nice
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