Question about Legacy LSW157 Car Subwoofer

2 Answers

Why does my Legacy LSW157 sub-woofer have 2 inputs?

I bought it second hand and have no instructions with it!

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  • mrmick1972 May 15, 2009

    I don't know why the end was cut off but it di as why the speaker has 2 inputs!

    It's a 4000 watt 4 ohm dual speaker with no instructions!

    Cheers everyone!

  • mrmick1972 May 15, 2009


  • Sphynkter
    Sphynkter May 11, 2010


    could you clarify your question? I don't understand what you're looking for. It looks like your question was cut off... 2 what?



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If the sub has 2 inputs it has dual voice coils(DVC). If you are trying to wire it to an amp there are some great diagrams here:

Just make sure you select the DVC options.

Posted on May 14, 2009

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This is called a dual voicecoil subwoofer.

It gives wiring flexibility.

While playing only 1 voicecoil is possible - it is not recommended.

They should be wired to match your amplifier.

If it is 2ohm Mono stable - you can wire both positives and both negatives together to the amplifier so it sees a 2ohm load (parallel wiring)

If your amplifier is not 2 ohm mono stable - you have no option but to either wire up 1 set of coils... or wire them in series.

+ on amplifier to + on coil1
- on coil 1 to + on coil 2
- on coil 2 to - on amplifier

This will yeild an 8ohm load for your amplifier.

Good for sonic clarity - but you will not get the full potential from your amplifier.

Thanks for using FixYa - A FixYa rating is appreciated for answering your FREE question.

Posted on May 14, 2009


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