Difference between single and dual coil

hbrandi
hbrandi Posts: 7
edited November 2004 in Car Subwoofer Talk
Hi everybody!

What is the difference between a subwoofer of one coil or those with two coils? My brother is donating me an amplifier with five channels. In the car audio forum recommend me to buy a sub with two coils. If my amp has only one channel available a double coiled subwoofer could be used? If so how can I connect it? If I connect only one coil of a double coiled subwoofer, the sw could be damaged?

Best regards :)
Post edited by hbrandi on
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Comments

  • exalted512
    exalted512 Posts: 10,735
    edited October 2004
    yes, you can have a dvc sub on a 1 channel amp
    as far as wiring goes...it depends on the sub and the amp
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited October 2004
    DVC allows more ways to hook up your sub. Parallel, series, resistance loaded, dual coil or single coil. All offer their different results, but no SVC woofer by itself can offer this many options.

    It simply makes it easier to find hookup options that will best match your amplifier when you have chosen a single driver as your sub.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • neomagus00
    neomagus00 Posts: 3,899
    edited October 2004
    bit of translation for what dennis said - you can wire the coils in parallel or serial, or you can short one out with a resistor (good way to change the effective q of the driver, see this pdf from adire). you can also drive only one coil, or you can push both separately (despite what you may have heard, this won't hurt the sub).
    It's not good, very fundamentally simply not good. - geolemon

    "Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs
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  • max3
    max3 Posts: 44
    edited November 2004
    I know tweeter isn't the most reliable source of info but they told me it would be better If I bought the DVC instead of the SVC for the MM2124. They said the DVC would handle the power better. I have 2 MM2124 SVC and two JL 500/1. Is it true that DVC handles power better?
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  • MacLeod
    MacLeod Posts: 14,358
    edited November 2004
    Yes. Take the MM2124. It handles 400 rms. Thats 400 watts per coil. The DVC MM2124 handles 400 per coil. And since the JL amps puts out 500 at 1-4 ohms it would split the power to 250 per coil so in this remote case, the Tweeter guy is actually right!
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • max3
    max3 Posts: 44
    edited November 2004
    Good to know unfortunately I bought SVC and thats all CC covers. On my next setup I'll buy DVC. Thanks
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  • swerve
    swerve Posts: 1,862
    edited November 2004
    Originally posted by max3
    Good to know unfortunately I bought SVC and thats all CC covers. On my next setup I'll buy DVC. Thanks
    That's all cc covers? please explain...

    do you mean that's all we carry?

    -adam
    cats.vans.bag...
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  • max3
    max3 Posts: 44
    edited November 2004
    yes sorry circuit city only carries SVC. I think when tweeter picked them up they demanded it be DVC so they sell those now. Not sure if thats true though.
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  • swerve
    swerve Posts: 1,862
    edited November 2004
    Originally posted by max3
    yes sorry circuit city only carries SVC. I think when tweeter picked them up they demanded it be DVC so they sell those now. Not sure if thats true though.
    we have a few DVC subs at cc... but otherwise we carry very **** subwoofers....

    -adam
    cats.vans.bag...
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  • max3
    max3 Posts: 44
    edited November 2004
    Originally posted by swerve
    we have a few DVC subs at cc... but otherwise we carry very **** subwoofers....

    -adam
    u have DVC for MOMO?
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  • swerve
    swerve Posts: 1,862
    edited November 2004
    Originally posted by max3
    u have DVC for MOMO?
    CC doesn't even have MOMO anymore... that's why i said "****".

    Love forever and always,

    -adam
    cats.vans.bag...
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  • MacLeod
    MacLeod Posts: 14,358
    edited November 2004
    Yup, Circuit City is no longer a viable player in the car audio community as far as Im concerned. That pisses me off too cause Ive been buying gear from there for about 15 years!! From Alpine V12's to Verge. :mad:
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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