Quick and lame question, I know

Systems
Systems Posts: 14,873
I ran my rears today with some new cable that I bought for my basement walls. I’m posting this real fast because they are sitting 6 inches form my computer chair. Most cable has printing on one of the wires so you can make it + and then the non printed can be your "-".

But I cant friggen tell with these wires and my line tester is at work.

I’m sitting here swapping the cables to + and to - to see which one sounds right and they both sound exactly the same lol.

At the speaker

black = +
Red = -

then

red = +
black = -


What am I missing. What happens if I get them backwards?

say:

amp+ = speaker -
amp- = speaker +
Testing
Testing
Testing
Post edited by Unknown User on

Comments

  • MGPK
    MGPK Posts: 88
    edited July 2007
    The sound from your rears will be out of phase, generally when speakers are wired this way they will lack a proper soundstage and sound hollow. It might be a little more difficult to tell on rears given the lack of information going to them compared to the front channels. Try using 5 or 7 channel stereo to test out their polarity.
    System:

    H/K AVR430 Receiver
    Samsung DVDHD841 Dvd player
    Yamaha CDC506 5 Disc changer
    Jamo E855 Tower speakers
    Wharfdale Pacific P-10 Bookshelf speakers
    Acoustic Research Master Series Interconnects
  • michael_w
    michael_w Posts: 2,813
    edited July 2007
    FXI5's are showing black is positive and red negative? That doesn't sound right... I wonder if the nuts were just taken off and switched.

    If it's not too much trouble, run the speakers two channel. You should notice they lack a lot of bass hooked up one way (out of phase + wrong polarity).
  • Systems
    Systems Posts: 14,873
    edited July 2007
    MGPK wrote: »
    The sound from your rears will be out of phase, generally when speakers are wired this way they will lack a proper soundstage and sound hollow. It might be a little more difficult to tell on rears given the lack of information going to them compared to the front channels. Try using 5 or 7 channel stereo to test out their polarity.

    Awesome advice, I forget about the "all stereo" option :)
    Testing
    Testing
    Testing
  • dudeinaroom
    dudeinaroom Posts: 3,609
    edited July 2007
    easy check. Hook the wires up to the speakers, un-hook them from your amp/receiver. take a aa battery and touch each of the leads to each side of the battery, if your woofer moves out take the wire that is on the + side of the battery and hook it up to the + side of your amp. If it moves in hook the wire on the + side to the negative terminal.
  • gwh
    gwh Posts: 1,451
    edited July 2007
    Best to use a 9v.....then stick your tongue on it when finished.;)





    G
    HT:
    Martin Logan Motion 40
    Martin Logan Motion 50XT
    Emotiva Airmotiv E2
    SVS SB16 Ultra
    Def Tech Reference Sub
    Yamaha RX-A3070

    Signal Cable speaker wires & interconnects.
  • Systems
    Systems Posts: 14,873
    edited July 2007
    Thx guys
    Testing
    Testing
    Testing
  • VXR8
    VXR8 Posts: 291
    edited July 2007
    MGPK wrote: »
    The sound from your rears will be out of phase, generally when speakers are wired this way they will lack a proper soundstage and sound hollow. It might be a little more difficult to tell on rears given the lack of information going to them compared to the front channels. Try using 5 or 7 channel stereo to test out their polarity.

    Aren't the FXi5s (if that is what you have) bi-pole and di-pole speakers? If so, won't they be out of phase anyway depending on the bi-pole or di-pole setting? Just food for thought ;)
    Regards - Gaz from the land of Oz

    Main System
    Denon - AVC-4700H
    Emotiva - XPA-9
    Cambridge Audio - Azur 851C - CXUHD
    Polk Audio - Legend L800 - Legend L400 - Legend L900 - LSiM fx - OWM3
    SVS - PB1000 x 2
    Foxtel - iQ4
    Belkin - Pure AV PF40
    Sony K77A9G

    Front Room System
    PS Audio - Sprout 100
    Cambridge Audio - CXC S2 - CA752BD
    Sony - UBX800 4K BluRay
    Polk Audio - Legend L200
  • george daniel
    george daniel Posts: 12,096
    edited July 2007
    gwh wrote: »
    Best to use a 9v.....then stick your tongue on it when finished.;)





    G

    Do it first :D
    JC approves....he told me so. (F-1 nut)
  • Systems
    Systems Posts: 14,873
    edited July 2007
    My rears are RT12 floor standing. My surrounds are FXi5
    Testing
    Testing
    Testing
  • dudeinaroom
    dudeinaroom Posts: 3,609
    edited July 2007
    set them to di-pole for the battery test.