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Thread: Invert Phase by Reversing +/- Terminals?

  1. #1
    Low Bitrate Epon's Avatar
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    Invert Phase by Reversing +/- Terminals?

    Hey, I understand the concept of just simply reversing the terminal connections to invert the phase on my sub, but if I was wiring it as such:



    I would still ultimatly just plug the + into my amps - and vice versa, right? Or do I need to reverse that wiring diagram as well? Thanks.
    2004 Ford Mustang


  2. #2
    Constant Bitrate dan__wright's Avatar
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    if you reversed it on the voice coil connections it would cancel it out, you would be using the - cable on all + terminals so it would be the same as wiring it up normally. just change it at the amp end.
    Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
    PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
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  3. #3
    FLAC
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    just change it at the amp end.
    x2

  4. #4
    Low Bitrate
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    You do realize what reversing the phase will do to your sub right?

  5. #5
    Constant Bitrate dan__wright's Avatar
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    nothing ?
    Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
    PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
    Toys:K8055 relay board, Elmscan OBDII

    Type-R Mini

  6. #6
    FLAC Jahntassa's Avatar
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    Well..if the sub is designed to compress the air in a certain way (Ie, compress the air in a sealed box), then having the sub reverse phase could potentially nix part of its usefulness, because it won't be compressing the air correctly.

  7. #7
    Constant Bitrate dan__wright's Avatar
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    but if you do everything properly then running reversed isnt going to cause any problems.
    Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
    PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
    Toys:K8055 relay board, Elmscan OBDII

    Type-R Mini

  8. #8
    Low Bitrate
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    It can still cause problems...It'll push air when it's supposed to be pulling and vice versa, so when there's a bass hit, it can sound hollow or off beat.

  9. #9
    Low Bitrate Epon's Avatar
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    If the ***-end of the speaker is outside the box, then I have to invert the phase, which is exactly what I'm doing.
    2004 Ford Mustang


  10. #10
    FLAC
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    Why does everybody second guess the guy without asking what he's doing?

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