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Thread: 2, 2ohm Dual Voice coil subs to mono amp

  1. #11
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    the 9105 is a mono amp. the 2nd number on kenwoods amp model #s indicates the number of channels. so wire it how you initially had it and just choose one of the sets of terminals to hook your subs to.

  2. #12
    Maximum Bitrate locs4dayz's Avatar
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    Quote Originally Posted by YESindeed View Post
    the 9105 is a mono amp. the 2nd number on Kenwoods amp model #s indicates the number of channels. so wire it how you initially had it and just choose one of the sets of terminals to hook your subs to.

    You can wire it using one side...But it is a "TWO" channel "MONO" amp. Trust me on that! Been installing car audio since high school!!! A true mono amp only has one channel to connect to, and most are capable of doing a 1ohm load. Should you decide to bridge this amp, you will be getting a 1ohms load on it...which may fry it(been there...done that)!
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  3. #13
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    it is technically a 1 channel amp with multiple outputs:http://www.kenwoodusa.com/Car_Entert...iers/KAC-9105D

    and those diagrams you linked to also show a similar monoblock amp setup-- multiple +, and - outputs but still mono...(otherwise, could you describe how they are different?)


    for connecting 2-2ohm dvc subs as a 2 ohm load, simply series parallel the vc's-- series the vc's of each sub, then parallel the 2 subs together-- and you will have a 2 ohm load...

    a 4 ohm load is impossible to use all 4 vc's with, but if you only use one vc of each, and series them, it will be a 4ohm load...

  4. #14
    Maximum Bitrate locs4dayz's Avatar
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    Quote Originally Posted by soundman98 View Post
    it is technically a 1 channel amp with multiple outputs:http://www.kenwoodusa.com/Car_Entert...iers/KAC-9105D

    and those diagrams you linked to also show a similar monoblock amp setup-- multiple +, and - outputs but still mono...(otherwise, could you describe how they are different?)


    for connecting 2-2ohm dvc subs as a 2 ohm load, simply series parallel the vc's-- series the vc's of each sub, then parallel the 2 subs together-- and you will have a 2 ohm load...

    a 4 ohm load is impossible to use all 4 vc's with, but if you only use one vc of each, and series them, it will be a 4ohm load...
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  5. #15
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    so basically i will be connecting to only one set of the output connections, one pos. and one neg. leaving the other set with nothing connected to them. right? maybe when the amp gets here, i can read the directions.lol

  6. #16
    Constant Bitrate 1996C1500's Avatar
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    Does the kicker website recommend that you wire the voice coils in parallel at the sub, but then series outside the box? If so, your getting two 1 ohm subwoofers in series to make 2 ohms total.

    If you were to wire the voice coils in series, you would then have two 4 ohm subwoofers wired in parallel to make a 2 ohm load.

    At the amp it will see the same load, but as far as what's better I don't know if that matters....

    Also, is it safe to use just one voice coil on a DVC subwoofer?

  7. #17
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    i bet that if you were to crack that amp open, both of the positive terminals would be hooked directly together and both negatives would be directly together. they are just giving both pairs as a convenience.

  8. #18
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    so you can even do each sub in series and run each one directly to the amp. either way its loading the amp with 2 ohms, which gives each sub 450 watts.

  9. #19
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    Quote Originally Posted by 1996C1500 View Post
    Also, is it safe to use just one voice coil on a DVC subwoofer?
    so far, i have not seen any real proof that connecting only 1 voice coil adversely affects the subs performance-- don't get me wrong, there are trade offs in both directions, but nothing that would cause the sub to fail faster, or sound worse strictly because of the number of vc's used..

    everything has trade-offs...

    the bonus to using both coils is that the sub could possibly use the audio signal more efficiently, because both coils are forcing the cone to move..

    the disadvantage is that you also have heat from both coils to deal with..

    one of the advantages of a single coil is that the second unused coil can act more as a heatsink-- partially allowing better power handling..

    the other bonus to 1 vc is dampening-- by using certain sized resistors across the unused vc terminals, you can tune, and tweak the overall sound of the sub, and the way it reacts..

    the disadvantage to a single coil is that most t/s parameters are measured with both coils, so your end result could vary widely from the specs you used to plan the sub setup...

  10. #20
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    Well, I'm back. i got everything hooked up and running. Sounds great....but..... when i turn the stereo up to about 24 or 25 on the volume, and it hits a big bass note, the amp stops breifly. the lights on it are all still on, just no sound coming from the subs. i turn the volume back down and it works again I have wired the voice coils in series and the subs in parallel and hooked them to the amp as the instruction said. i have checked all wire connection and i am banging my head on the hood of my truck trying to work the problem out. any suggestions?

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