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Simple question - Why will my powered sub only work once a level of volume is reached?

post #1 of 5
7/17/12 at 7:38am
Thread Starter 
Hey everyone, first time poster here smile.gif

I'm getting ready to upgrade my A/V equipment but first I have a simple question that's been eating at me for a while.

I've got an older powered sub and older receiver. Regardless of where the source of audio is coming from the sub will NOT work unless I turn up the receiver volume to a certain point. I only have to turn up the volume a little (it's still quiet) however there are times where I like my speakers VERY low and the sub simply will not "react". I'm sure its a basic setting, frequency cutoff, etc.

Thanks fellas!
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post #2 of 5
7/17/12 at 7:41am
Does your sub have an "auto on" mode that it's set to? It sounds like that might be the case, and it just happens that the sub requires a certain (slightly higher) level of signal to cause it to switch on.

If that is the case, you could either leave your sub on all the time or set up a trigger to power it on whever you turn on your AVR.
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post #3 of 5
7/17/12 at 8:18am
Thread Starter 
Interesting - the sub is already on 100% of the time, so perhaps it's auto powering off? I'll have to get the model # of this thing.
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post #4 of 5
7/17/12 at 8:23am
Quote:
... the sub is already on 100% of the time, so perhaps it's auto powering off?
If the power switch is set to "on" instead of "auto", the sub should never power off. Weird...
Edited by eljaycanuck - 7/17/12 at 8:29am
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post #5 of 5
7/17/12 at 8:44am
If you can, try turning down the volume knob on your subwoofer (which won't affect the auto-on threshold) and turning up the gain of the subwoofer channel in your receiver.

If you have a receiver which includes Audyssey room equalization, this can be done while calibrating.


Edited to add:
The power-on/auto-on switch might be defective or dirty. Try switching it back and forth several times to clean the contacts and make sure it's all the way to on.
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