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Thread: On a 2 channel amp that I plan on bridging, do I need BOTH rca ins?

  1. #11
    FLAC
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    You're running two sets of components for your front stage, you're running rear fill and you're using 5 amps.

    There's a WHOLE lot that goes against SQ in that setup.

  2. #12
    FLAC XC-C30's Avatar
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    Xenia & Isabelle, totally in love!

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  3. #13
    Variable Bitrate FyreDaug's Avatar
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    Not if it gets tuned right. It would be different if it were a simple deck. Rear fill is minor, its just to get that "behind you sound" that I like better than just a simple component set. 2 components because the mbq's lack low-mid, and the excursion speakers are good for that. 2 tweeters and full headroom. tweet up high and mid, and the woofers lower. There are things I can do to clean it up if need be, but its gonna sound good. High quality stuff

  4. #14
    Constant Bitrate ZtH01's Avatar
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    Quote Originally Posted by FyreDaug View Post
    I have 2 of the same amp that I want to use for the fronts. I also have 2 sets of components going up front.

    The amp is 80w x2 @ 4ohm
    110w x2 @ 2ohm
    or 220w x1 @ 2ohm. Both sets of components are good for over 120watts, so this is what im planning on doing

    Amp #1 will control the left speakers, I will feed it a left channel input and then bridge both left speakers to give me a 2ohm load, and then itll give it 110w each. Rather than wire all 4 speakers off 1 amp I would only get 55w each (where only using 2 would be 80w) so I dont want that.

    Basically my question is: if I have a left and right rca, can I put the left one into one amp and not need another connection? Meaning left rca will go to 1 amp and the right rca will go to the other amp. Can I just leave the other rca open or does it need it to be able to "merge" the left and right to give it a bridged output? Its a 2 channel amp is the only reason im asking, I know its fine on a mono amp with 2rca inputs and only using 1.
    Yikes.....

    I would not bridge those amps with your mids/highs. To much distortion, especially at 2ohm mono.... IF it doesn't kill your amps.

    If you must use 2 sets of components give each one it's own unbridged 4 ohm channel.

    I'd keep one set as midrange/high, and try to enclose another has mid bass. Ditch the second tweeter. MBQs are notoriously bright.

    And yes, you need to have both RCA inputs connected.
    -ZtH01
    "It's my belief that my big balls should be held every night"

  5. #15
    Variable Bitrate FyreDaug's Avatar
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    Quote Originally Posted by ZtH01 View Post
    And yes, you need to have both RCA inputs connected.
    I actually dont think so, why would you? Maybe it makes sence on a 2 channel amp but for a mono amp you really only need 1 input right?

  6. #16
    Variable Bitrate FyreDaug's Avatar
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    But im gonna try it wired up that way, worste case scenerio ill just hook up the mbq's to 1 front amp and the other components to the other same amp. And ditch the other one. Im just testing it anyways. If it does sound good ill keep it and rock the extra power, if not, then im ditching my old 75x2 amp for the other components

  7. #17
    FLAC XC-C30's Avatar
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    Quote Originally Posted by FyreDaug View Post
    I actually dont think so, why would you? Maybe it makes sence on a 2 channel amp but for a mono amp you really only need 1 input right?
    if you already made up your mind, why did you ask? if you already planned on just using one RCA, why did you even bother us with it?
    Xenia & Isabelle, totally in love!

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  8. #18
    Variable Bitrate FyreDaug's Avatar
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    to see what other people think? Why else would I ask?

  9. #19
    FLAC XC-C30's Avatar
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    other people think you need both, and still you're gonne use just one, so what does it matter what they think? right, it doesn't mean jack...
    Xenia & Isabelle, totally in love!

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  10. #20
    Variable Bitrate FyreDaug's Avatar
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    Well explain to me why you need both. If it just adds 2 signals together then why not just give it one signal? It shouldnt play any different

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