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Re: (Do I dare?) Wierd SVS thing..
#99405 06/20/05 09:42 PM
Joined: Sep 2004
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axiomite
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axiomite
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Tom from SVS has me doing the usual. Use a different cable, try a different outlet (actually my idea), but of course if the problem was a pure fluke, I am wasting my time. Of course, if the sub does it again, then it localizes it (somewhat) to the sub or the receiver (which is powered of... OK, in standby mode like all receivers).

This could be a long process until the problem happens again...


Farewell - June 4, 2020
Re: (Do I dare?) Wierd SVS thing..
#99406 06/20/05 10:58 PM
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I just thought of a possible cause for your problem. I have a small powered subwoofer attached to my computer. It has an auto on/off signal sense feature, just like your SVS.

I occasionally notice that it is on even though my computer is off and incapable of generating a signal. I've been able to track this "phantom turn on" issue to two causes.
  1. I have a halogen desk lamp plugged into the same power strip as the subwoofer. When I turn the desk lamp on, it triggers the sub to turn on, as well.
  2. I often leave my cell phone on my computer desk. If my speakers are on when the phone communicates with the cell network, they pick up the signal and I canhear beeping noises through the speakers. The cell signal also triggers the sub to awaken and make noise.
Does either of these causes match up with your situation?

Re: (Do I dare?) Wierd SVS thing..
#99407 06/20/05 11:35 PM
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axiomite
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>>Of course, if the sub does it again, then it localizes it (somewhat) to the sub or the receiver (which is powered of... OK, in standby mode like all receivers).

In my case the problem only happened when the sub's amp had been powered up for a while... I heard it after the receiver was switched off but the sub's auto-on was still on for 15 minutes or whatever the time is.

I was able to repro more quickly by leaving the sub powered on (rather than auto-on) after checking with SVS that it was OK to do so.

Sounds like a different problem though, mine was more like what you would get if you crossed... well, maybe a canary with a subwoofer. Very low frequency chirps


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Re: (Do I dare?) Wierd SVS thing..
#99408 06/21/05 02:05 AM
Joined: Sep 2004
Posts: 5,422
axiomite
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In response to:

Poster: pmbuko
Subject: Re: (Do I dare?) Wierd SVS thing..

I just thought of a possible cause for your problem. I have a small powered subwoofer attached to my computer. It has an auto on/off signal sense feature, just like your SVS.

I occasionally notice that it is on even though my computer is off and incapable of generating a signal. I've been able to track this "phantom turn on" issue to two causes.

I have a halogen desk lamp plugged into the same power strip as the subwoofer. When I turn the desk lamp on, it triggers the sub to turn on, as well.
I often leave my cell phone on my computer desk. If my speakers are on when the phone communicates with the cell network, they pick up the signal and I canhear beeping noises through the speakers. The cell signal also triggers the sub to awaken and make noise.
Does either of these causes match up with your situation?
_______________________________

Mine happened in the middle of the night with no lights on, nothing "powering on or off" (my computer subwoofer makes a click sound when I turn on or off the lights in the room that it is in since it is on the same circuit, so I know what you mean there). It is just so strange. The house was just quiet, and then the low freq rumble (not hum) that was loud enough to wake me up 2 stories above it....



Farewell - June 4, 2020
Re: (Do I dare?) Wierd SVS thing..
#99409 06/21/05 02:25 AM
Joined: Jun 2004
Posts: 1,805
connoisseur
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Does anyone in your area have an arc welder?
I had a similar thing happen with my old sub where I use to live.
Turned out it was caused by a guy 2 blocks useing a welder.


LIFE IS SHORT.
DON'T BE A DICK.
Re: (Do I dare?) Wierd SVS thing..
#99410 06/21/05 02:57 AM
Joined: Sep 2004
Posts: 5,422
axiomite
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Hmmm... Arc welder... Don't know, to be honest. They would have to be more than a couple of blocks away from where I live if that was the case. While I am not 100% positive, I am pretty sure that nobody in our subdivision has one, but maybe it is some other power drawing equipment. It was pretty early, but just like I like to stay up late, I know others like to get up early.


Farewell - June 4, 2020
Re: (Do I dare?) Wierd SVS thing..
#99411 06/21/05 03:49 AM
Joined: Jun 2004
Posts: 1,805
connoisseur
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I'm not one of those people.


LIFE IS SHORT.
DON'T BE A DICK.
Re: (Do I dare?) Wierd SVS thing..
#99412 06/21/05 04:06 AM
Joined: Sep 2004
Posts: 5,422
axiomite
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axiomite
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The up early or up late?


Farewell - June 4, 2020
Re: (Do I dare?) Wierd SVS thing..
#99413 06/22/05 12:09 AM
Joined: Jun 2004
Posts: 1,805
connoisseur
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Ask any of my XGFs.
I am not a morning person.
9.00A.M. and I'm ok, any earlier....... make sure there is GOOD coffee.


LIFE IS SHORT.
DON'T BE A DICK.
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