wireless to wire conversion home theater sub

December 2, 2012 at 11:34:43
Specs: home audio
how do i go about converting my wireless sub to a wired sub for my home theater system? is it even possible
it is an lg system and the sub will not remate to the receiver which from what lg said is a common problem. they want over 150 to diagnose and ship it back and forth plus parts to fix when they determine the issue its not worth it to me but i think i could live running wires.. so if anyone could help id be so grateful. model number LHB975

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#1
December 2, 2012 at 13:44:55
Mmm... never been involved with this type of kit... I'm not sure there is an easy way to this... Other than to carefully open the speaker housing and connect a pair of short cables to the actual speaker terminals; anchor those cables securely within or just outside/to the case... Run decent quality cables to output terminals on amp? Use decent connectors too - not cheapies.

There also stand-alone wifi transmitter/receiver kits on the web; Amazon has one for about $150. Connect tx unit to amp. Connect rx unit to cable attached to speaker terminals. Then you still have wireless system - using the lg for other speakers, and the additional wifi tx/rx for sub woofer?

Incidentally simply referring to your problem kit as a "sub" is not too helpful; not everyone will read into your post and maybe help? Usually to describe/name it properly?


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#2
December 2, 2012 at 15:11:08
trvlr

I assume he means Subwoofer. Where does kit come into the equation? The sub, may or may not feed additional speakers.


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#3
December 2, 2012 at 15:22:41
Hi OtH:

Yes I presumed sub-woofer... "Kit" was really my way of referring to whatever it is he is talking about... Be it a single item or more... And a good point about the sub feeding other items speakers (kit...); not something I was aware might the case...

As I said initially, not familiar with the wifii versions of such "kit" at all...; so really postulating what might be a viable way forward...

Have to say that it may be beyond a few to get into a wifi unit and bring out the actual speaker connection as I suggest; but not all... Depends I guess on how the thing is assembled and sealed; and ability and confidence etc. of the owner?


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#4
December 2, 2012 at 15:44:56
I tend to stay away from wireless anything, if I can. This thread is a good reason to do that.

I don't have any knowledge of how to wire that sub. If there are additional speakers piggybacked on the sub, I don't think just connecting a couple of wires will suffice. There would be crossover circuits involved feeding the different frequencies.

Page 19 of the manual for that system provides some troubleshooting ideas. Manual link below.

http://www.lg.com/us/support-produc...


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#5
December 2, 2012 at 16:39:32
ok well i disassembled the sub woofer and found the speaker ports on the computer board. i soldered the speaker wires and to be safe i ran it through my car amp to test it figured at most blow a fuse rather than risk taking out all my speakers and blu ray. it worked great however when i moved it back inside and hooked to my home theater i had to share a speaker port with my right front speaker because i had no more available and the sub woofer just sounds like a regular speaker no bass. so is this because i shared a port with the right front or did i possibly bypass my internal amp?any ideas

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#6
December 2, 2012 at 19:14:30
Somehow you need to get to the output for the wireless sub. I have no idea how to do that.

Subwoofers operate at very low frequencies.


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#7
December 2, 2012 at 19:35:41
i got the right output i mean the thing works great when i put the negative and positive speaker wires to my car amp.unless im just not understanding what your trying to say. I just cant figure out why i don't get the bass when i wire it up with the bluray player.i dont think it would be that its sharing a speaker port with a front speaker because ive done that in the past and never had an issue.i was thinking of trying to run into an external amplifier if i can find one or possiably dropping some money on a receiver to run my whole system through instead of going through the bluray player.

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#8
December 3, 2012 at 03:23:09
Crossover circuits filter the different frequencies and send only the appropriate frequencies to each speaker. You may be able to get the sub working but in order to get it to perform as intended it must receive only the intended frequencies, which are much lower than the front speaker.

When you have a 3 way stereo speaker there are bass, mid-range and tweeters. Each is fed the frequencies it was designed to reproduce. There is some crossover but that is the general idea.

Hope I have explained it correctly.

Is your subwoofer a stand alone unit with no other speakers connected to it? Are the other speakers wired?


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#9
December 3, 2012 at 04:59:04
- off at a slight tangent in terms of possible resolution to missing sub-woofA (woofer...) as currently being discussed... OtH's explanation is fine; and does point to possible issues that are affecting why you can't get it to work at this stage...

I'd be inclined to go for an external amp system (preferably hard wired - real cables), and pass all audio o/p sources that merit it through that. Thus the Bluray becomes a source of audio/video and no more than that. Use good quality cables and connectors too.

More than likely too the quality of an eternal amp o/p will be superior to whatever the Bluray puts out?

Like OtH I tend to avoid wifi systems - unless absolutely essential/no- really viable alternative. Interference is one issue; hacking another if pc related; not forgetting the possible nasty/side effects of having wifi frequencies all around you all the time; and which may/may not be good for you...? (And I'm not going to go down that latter path here...; it's well discussed elsewhere "out there" - Scully...)


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#10
December 3, 2012 at 05:14:21
Incidentally, you seem to imply that LG are aware of possible issues with the sub-woofer they are selling (at least that particular version); yet decline to resolve it for you at their expense etc.? If they are aware of an issue with it and have acknowledged it too... I'd be inclined to lean a little harder on them to resolve it all for you - at their expense (but willing perhaps to cover shipping from your side - within reason...; but don't suggest that shipping option initially.) Also how old is this sub-woofer; and presuming it is out of warranty - by much is it?

Have you had any contact with customer service in N.America (or wherever you are if not in N. Am.) and similarly even trying their head office overseas; which having said I'm not sure where it is actually located... A google search suggests it's in India, Korea - and Canada...? I would have plumped for Korea... Another slightly different search/string bring this hit:

http://wiki.answers.com/Q/What_is_l...

which seems to support Korea...?


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#11
April 14, 2013 at 02:48:59
Hello there. I do have a panasonic sc-zt wireless home theater with 4 speakers which unfortunately is not working properly because of signal interruption. I would like to wire these speakers. Does anyone have any idea how? Thanks in advance. Andre

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#12
April 14, 2013 at 05:57:18
"Andreabinassif"

Rather than attach/post your call for help to this now old(er) post... Suggest you repos a "new" message outlining your problem.

That way you will likely get a better range of replies and hopefully a working solution for you.

trvlr


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