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Despite wiring speakers correctly they remain out of phase. I know that reversing the connections resolves this problem but it has caused problems when playing 4 speakers simultaneously i.e., I need to switch back the connections everytime I play A+B speakers. Any advice would be much appreciated. Stephen.

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I have no idea how you determined they are out of phase. Normally if you change all of them the result is the same. Just change the one (swap the speaker leads) that is out of phase.

First assume they marked on the amplifier typically red and black connections. Then check the speakers to see if they are also marked the same way, if so match the colors.

If they are not marked you need to be able to see the cone, that use to be easy. Use a battery and connect it across the speaker leads, I use a flash light 1.5 volt battery. You may have to go to a 9v but try the 1.5 first. When you connect the battery the speaker cone will either move forward or reverse. If the cone moves in reverse when connected swap wires. When the cone moves forward just mark with the plus (red) coinciding with the battery.

Posted on Nov 28, 2014

  • Stephen Murphy
    Stephen Murphy Nov 28, 2014

    Thank you Gil, I can tell if speakers are out of phase if there is an almost total absence of base and no breath to the sound i.e. An almost mono sound. It also "hurts" my ears. So the one set of speakers are DEFINITELY out of phase. My real problem is when I play 4 speakers no matter what way I connect the cables the speakers are out of phase. Stephen.

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SOURCE: Have a Pioneer VSX-1018 receiver. When I connect

You speakers are out of phase. Check to see if the polarity is correct on the receiver and the speaker. Positive (red) with positive, negative with negative (black). Also check the impedance of the speaker, it should be located on the back of the speaker measured in ohms. Make sure that your receiver matches the impedance of your speaker. You can find this in the settings of the receiver.

Posted on Dec 08, 2009

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Model BH6820SW. Why aren't rear speakers working correctly?


  • The rear speakers may have been connected with L and R channels reversed
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"W-1 Phase" error, when running the YPAO, means that one or more of the speakers in your home theater set up is out of phase. This happens when the + and - wires are not consistent throughout all of the speaker connections (red and black terminals). Make sure your red/copper color wire is connected to the "red" speaker terminals , and the silver color wire is connected to the "black" speaker terminals. This error can also happen even if all of the speaker cables are connected correctly but the acoustics of the room are creating the out of phase sound the microphone is picking-up.

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What does check phase mean? Must have something to do with the sound since I am not getting any from any source except am/fm but only out of one front speaker.


Hello
There is tow leads for every speaker. Out of which, one will be marked [+ve] and the other will be negative. The negative terminal of the speaker should coincide with the negative terminal of the respective output terminal from the amp. For the other speaker also, this must be the same with respect to connection. If any one connection in one speaker has been reversed, the sound effect will be effecteed. When we connect in phase, that is [+ve] and [-ve] correctly to both speakers the sound effect will be great. If one among them is reversed, the effect of one speaker will neutralise the other, and the sound spectrum also will be neutralised. Checking this connection whether it has give in correct way is calle "check phase'. OK.

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No sound to remote speakers in dining & deck areas.


Incoming from WHAT? Ampifiers accept inputs via RCA connections and send amplified audio to the speakers via the + and - OUTPUT terminals.

I'm guessing your colored wires are from your speakers and that there is a piece of this puzzle we do not see - how the speakers on the deck and in the dining area are wired.

You say, "was working ok previously"... previous to WHAT? Something changed.

You can probably troubleshoot and resolve this yourself.

Set the amp to a medium output level.

If the wires are simply leading to either or both pairs of speakers you could select any two of them and connect them to one side of the amp. Only a pair going to the same speaker(s) will produce sound. Once you identify one pair, the other pair probably goes to the other speakers. Connect them to the other channel output.

The last piece would be to establish correct phasing between the speakers. Bass response will suffer if they're not IN-phase. Play something with substantial bass. Listen closely, then reverse the wires on one side only. Test again. If it IMPROVES you have it right. If it losses bass, put the wires back the way they were.

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Red is "Key on Pwr"
Yellow is "Constant Hot" always powered
Black is "Ground"
Blue is "Pwr antenna or amplifier remote turn on"

This is tapping my memory a little, however, I believe stripe is positive on Kenwood and solid is negative. The easiest way to test spkr wiring is to connect your pwr,gnd,etc. then make sure all other wires are individually taped barring one. Use any speaker, turn on the radio, connect one wire to pos & one to neg on spkr, look at the cone of the speaker, if it pops out, you have the correct wiring "in phase" if it's incorrect, the spkr will appear to pop "in". That's "out of phase" reverse your wiring.

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Are you sure the speakers are connected properly ? one of them might be connected in reverse - the + is in the - slot in one of the speakers which will cause phase cancellation problems, in other words, signals that are coming from both speakers will cancel out each other because one of the speakers is working in reverse phase.
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Labtec LCS 1024


I don't have a wiring diagram for you but can tell you this as standards apply.

Red is always the positive (+) terminal and black the negative, ground, (-) terminal. FYI-though people use the term ground it is not correct.

Another thing you should know is red and black are relative. Inother words, when red to red and black to black it will cause an outward motion of the speaker. If you happen to reverse them, red to black, it just causes an inward motion of the speaker. Sometimes this is refered to as the "phasing" of the speaker.

Speakers are usually marked at their connection points with a red dot or a (+) for the positve and a black dot or (-) for the "negative" side.

So there's nothing to worry about if this happens anyway except:

if you were to go red-black on one speaker, and red-red on the other. This will cause the speakers to be in series which normally wouldn't hurt things, but make sure it's not done just in case you amp section cannot tolerate this condition.

Hope this helps.

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