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Thread: Bridged or no?

  1. #1
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    Bridged or no?

    so i just got my new Infinity Reference 12" w/ dual voice coils and i'll now be ordering an amp. BUT, should i buy a 2-channel amp so that i have one channel per voice coil, or should i buy a single channel amp or run a 2 channel bridged??

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  2. #2
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    It all depends on a few factors when dvc subs are involved. Dual 2ohm coils can work: coils in series on a bridged 2-channel, coils parallel on a 1ohm stable mono amp, or one coil per channel. Dual 4ohm subs wil work: coils per channel on a 2-channel(use half of your power available), coils in series bridged on a 2-channel(still using half of your power), coils parallel on a 2-ohm stable mono for full power or a 1ohm stable mono for half power. Most 2-channel amps are only 2ohm stable per channel, 4ohm brigded. Most mono amps are 2ohm stable with the higher end amps being 1ohm stable. Hope this helped and made sense.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
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  3. #3
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    Quote Originally Posted by lo-lyf View Post
    It all depends on a few factors when dvc subs are involved. Dual 2ohm coils can work: coils in series on a bridged 2-channel, coils parallel on a 1ohm stable mono amp, or one coil per channel. Dual 4ohm subs wil work: coils per channel on a 2-channel(use half of your power available), coils in series bridged on a 2-channel(still using half of your power), coils parallel on a 2-ohm stable mono for full power or a 1ohm stable mono for half power. Most 2-channel amps are only 2ohm stable per channel, 4ohm brigded. Most mono amps are 2ohm stable with the higher end amps being 1ohm stable. Hope this helped and made sense.
    it made sense. but, what would you recommend for best sound? It's the infinity reference 1262w 12". 60-300rms per coil.

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  4. #4
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    It depends on the ohm of each coil. You want the rms power of the amp to match the rms power of the sub. I usually use a class d mono for subs whenever possible. Your sound is going to come from the tuning more than the amp, but if you don't have the right power your tuning won't really matter.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
    2002 black Yukon SLT (the skinny sister)
    1969 green Pontiac GTO (Layla, AKA the black sheep)

    INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
    Sticky/broken gauges? I can help. PM me for details.

  5. #5
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    Quote Originally Posted by lo-lyf View Post
    It depends on the ohm of each coil. You want the rms power of the amp to match the rms power of the sub. I usually use a class d mono for subs whenever possible. Your sound is going to come from the tuning more than the amp, but if you don't have the right power your tuning won't really matter.
    each voice coil is 300rms max. I dont wanna go with a class d cause those usually tend to be more expensive. i'm just wondering what your personal opinion is on what sounds better. a bridged two channel amp putting out 300rms @ 4 ohms bridged or a 2 channel amp with one channel per VC putting out 300rms @ 4ohms per coil.

    R.I.P Blue '02
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  6. #6
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    I think I'm being misunderstood, which is no biggie. It happens all the time. The wattage rating is almost irrelevant when it comes to the best way to wire them. Find out the impedence (2 ohm, 4 ohm, or 8 ohm) of each coil and I can tell you what amp will work best for you.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
    2002 black Yukon SLT (the skinny sister)
    1969 green Pontiac GTO (Layla, AKA the black sheep)

    INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
    Sticky/broken gauges? I can help. PM me for details.

  7. #7
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    I think I'm being misunderstood, which is no biggie. It happens all the time. The wattage rating is almost irrelevant when it comes to the best way to wire them. Find out the impedence (2 ohm, 4 ohm, or 8 ohm) of each coil and I can tell you what amp will work best for you.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
    2002 black Yukon SLT (the skinny sister)
    1969 green Pontiac GTO (Layla, AKA the black sheep)

    INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
    Sticky/broken gauges? I can help. PM me for details.

  8. #8
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    Quote Originally Posted by lo-lyf View Post
    I think I'm being misunderstood, which is no biggie. It happens all the time. The wattage rating is almost irrelevant when it comes to the best way to wire them. Find out the impedence (2 ohm, 4 ohm, or 8 ohm) of each coil and I can tell you what amp will work best for you.
    4 ohms, but too late now. i just ordered a 2 channel amp that puts out 250rms @ 4 ohms per VC. i didnt misunderstand you i just forgot to mention some details

    R.I.P Blue '02
    '08 - 5.3
    Vette Servo, Flowmaster 40

  9. #9
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    Quote Originally Posted by jetersaurous View Post
    4 ohms, but too late now. i just ordered a 2 channel amp that puts out 250rms @ 4 ohms per VC. i didnt misunderstand you i just forgot to mention some details
    Good deal. Seems like a good combo.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
    2002 black Yukon SLT (the skinny sister)
    1969 green Pontiac GTO (Layla, AKA the black sheep)

    INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
    Sticky/broken gauges? I can help. PM me for details.

  10. #10
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    Quote Originally Posted by lo-lyf View Post
    Good deal. Seems like a good combo.
    i hope it is

    R.I.P Blue '02
    '08 - 5.3
    Vette Servo, Flowmaster 40

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