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Resolved Question

Passive SubWoofer Needs Volume Control

by tclotworthy / January 19, 2013 11:14 PM PST


I have an inexpensive Phillips Home Theater System. It's your basic 5 speaker setup (including subwoofer).

Is there some way I can control the signal to the subwoofer individually? It just has straight speaker wire going to it. Perhaps I could put something in line between the receiver and the subwoofer? I am looking for a cheap/quick solution that gives me control.

Thanks for any response!

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All Answers

Best Answer chosen by tclotworthy

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Which model number do you have?
by Pepe7 / January 26, 2013 5:38 AM PST

Are you certain you can't adjust each speaker level somewhere in the settings? I remember even some very old, entry level HTIB systems that can do that as needed. Please provide the model number so we can double check.

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Model Number is
by tclotworthy / January 26, 2013 6:08 AM PST

Phillips HTS3555

Thanks for any additional help!

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My Mistake, I Could Control Volume
by tclotworthy / January 26, 2013 9:09 PM PST
In reply to: Model Number is

Thanks for the idea to make sure that I couldn't adjust the volume of speakers individually. I found that you could from the DVD menu. All is good now.

Thanks for help and all responses!!

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Glad to hear it worked
by Pepe7 / January 26, 2013 10:33 PM PST

In the future, you can always either visit the Phillips (etc.) support site and throw in your model number to find the user manual online, or use Google with the model number and the words 'xxx user manual'. Works in a pinch anyway, especially when you have a spouse that throws out your big binder of electronics manuals ;(.

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So an L PAD?
by R. Proffitt Forum moderator / January 20, 2013 4:12 AM PST

Example follows.

There are a few things to consider such as if the speaker is powered or the amplifier does that, how many Watts to get the LPAD for as well as Ohms.

But this is a common thing that isn't very expensive. Your everyday tech can add this in no time.

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Bought That L PAD, but Wrong Impedence
by tclotworthy / January 26, 2013 4:59 AM PST
In reply to: So an L PAD?

I really appreciate that link to the L PAD. That is exactly what I was looking for, so I bought it!

However, I did not realize until I received it in the mail that it supports an 8 OHM signal, and apparently the signal to my subwoofer is 3 OHM!

I assume if I use it anyway, one or more of the following 3 things will happen:

1) it will damage my receiver.
2) it will damage my subwoofer.
3) it may not damage anything but the output from the subwoofer will be distorted.

Does anyone have any great ideas as to what I should do at this point? I wish I were an electronic expert.

Thanks for any response!

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With proprierary HTIB systems...
by Pepe7 / January 26, 2013 5:39 AM PST don't have good options sometimes if they don't use standard impedance levels/connection types/etc. Sad

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Ahh. This is why I wrote about Ohms in my post.
by R. Proffitt Forum moderator / January 26, 2013 5:59 AM PST

Because wires can add Ohms, I rarely see any damage from too many. Too few could cause issues. Too many and not such a bad thing.

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Impedance and connectors
by mjd420nova / January 28, 2013 7:24 AM PST

Each voltage level usually has sheilding and connectors to match. With just speaker wires, usually 4, 8 or 16 ohms. A rheostat can be had from radio shack to reduce the input to your desired level. "Passive" usually refers to a NON powered element so that's confusing. You could also stuff a sock in it.

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