Can i do this?

Razzman
Razzman Posts: 9
edited November 2006 in Car Audio & Electronics
OK so i've decided to put MMC6500's in the boat powered by a four channel amp with 75 RMS per channel. The problem is the front speakers are way up under the windshield and the rears are approx. 10 feet back from those so i came up with the bright idea to add a third pair about 4 feet back from the front pair. Can i series wire the front and middle pair together? If so will it affect power to them? Sound output / clarity?
Post edited by Razzman on
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  • MacLeod
    MacLeod Posts: 14,358
    edited November 2006
    I would wire the front set off the front channels of the amp and then wire the middle and rear pair, in parallel, to the rear channels assuming your amp is stable to 2 ohms stereo which is should be.
    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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  • Razzman
    Razzman Posts: 9
    edited November 2006
    MacLeod wrote:
    I would wire the front set off the front channels of the amp and then wire the middle and rear pair, in parallel, to the rear channels assuming your amp is stable to 2 ohms stereo which is should be.

    Makes sense to wire the rears now that i think about it. One question though, I've decided to use DB650's which have a 60 rms/180 peak capability. The amp puts out 75W per channel and parallel at 2 ohms would be 100W per channel, can the DB650's handle that kinda of power?

    Also (another dumb question) how exactly do you make the parallel connections themselves? Do you connect two wires into one slip connector for positive/negative or use another method? Sorry for the ignorance here but it's been years since i've played with this stuff.
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  • MacLeod
    MacLeod Posts: 14,358
    edited November 2006
    That amp will be fine for the DB's.

    As for wiring, just wire the negative of the speakers to the negative of the amp and positive to positive.
    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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  • Razzman
    Razzman Posts: 9
    edited November 2006
    MacLeod wrote:
    That amp will be fine for the DB's.

    As for wiring, just wire the negative of the speakers to the negative of the amp and positive to positive.

    So which method is preferred, example A or B. Or does it matter?
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  • exalted512
    exalted512 Posts: 10,735
    edited November 2006
    doesnt matter, it looks like A would be easier, so I'd go that route
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • MacLeod
    MacLeod Posts: 14,358
    edited November 2006
    exalted512 wrote:
    doesnt matter, it looks like A would be easier, so I'd go that route
    -Cody

    Yup. Both are the same thing and the only difference would be having to buy extra speaker wire.

    Go with A
    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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