Will my amp power it?

Discussion in 'OT Technology' started by BabyGap, Jun 13, 2007.

  1. BabyGap

    BabyGap New Member

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    I currently have 2 10' Polk momo subs powered by a 2 channel 1000w amp but I was looking to get 2 15's of the same brand, as I just like Polk.

    they are http://www.polkaudio.com/caraudio/products/mm2154/

    But my question would I need a new amp or would it run it fine? (it is stable down to 2 ohms, If that matters at all).
     
  2. jjski78

    jjski78 New Member

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    What model amp is it??
     
  3. BabyGap

    BabyGap New Member

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    Its is a Crunch powerzone. as far as the exact model im not sure ill have to dig up the paperwork on it.

    Not the best but I got a good deal on it.
     
  4. Ronin

    Ronin Guest

    there is no such thing as a good deal on crunch, only barely legal fraud
     
  5. Bowers & Wilkins

    Bowers & Wilkins New Member

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    since you say your amp is "1000w" 2-channel, im assuming thats peak (bridged @ 4 ohms), so 500 RMS bridged at 4 ohm (which would be good for one of those 15s since its a 4 ohm woofer that can handle 400 RMS)

    BUT if you ran both of those bridged, you would have to wire them in series to get it up to an 8 ohm load and give only 125 RMS to each sub.

    since that amp is probably 125 x 2 stereo @ 4 ohm, it would be similar to that^^

    basically without underpowering those subs, you would need to get an 800 RMS mono amp @ 2 ohms

    if you're stubborn on those subs, i would get the DVC design (http://www.polkaudio.com/caraudio/products/mm2154dvc/) and run both subs in parallel to present a 1 ohm load, and get an 800 RMS mono amp that is stable at 1 ohm. it will sound cleaner, give you an obvious power increase, and plenty more sub-oriented controls
     
  6. P07r0457

    P07r0457 New Member

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    yes, you want to replace your amp.
     
  7. BabyGap

    BabyGap New Member

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    I'm not stubborn on those subs I just Don't want to spend a fortune on them, and I'm not exactly sure on which brands to trust.
     
  8. GammaRadiation

    GammaRadiation Active Member

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    You dont need to replace your amp. Get the subs, use the amp you have to the best of its ability. If you feel you need more THEN and only then do I advise getting a more powerful amp.
     
  9. P07r0457

    P07r0457 New Member

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    yes, it's much better to use a fucktastically shitty amp set to overdrive nd barely able to move the coils at horrible distortion levels. :rolleyes:
     
  10. BabyGap

    BabyGap New Member

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  11. P07r0457

    P07r0457 New Member

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    wouldn't recommend it. What is your budget?
     
  12. BabyGap

    BabyGap New Member

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    Thinking around 300, or am I going to have to spend more?
    I want it to sound good but I don't want to spend a shit ton of money.
     
  13. P07r0457

    P07r0457 New Member

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    1000W RMS for $300 is gonna be real tough.
     
  14. BabyGap

    BabyGap New Member

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    K, Can you recommend one for me then? so at least I know what I have to spend?
     
  15. P07r0457

    P07r0457 New Member

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    well, first off I'd recommend going with the DVC version of that sub -- that way you can leverage the extra power you get @2 ohm
    http://www.polkaudio.com/caraudio/specs/mm2154dvc/

    Run voice coils in parallel, subs on discrete channels for 2 ohm load 2x400W:
    http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=5321
    2x500W:
    http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=3876

    Run voice coils in parallel, subs in parallel for 1 ohm load, and this sub does 1000W:
    http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=373

    I'm not really excited about any of these, but they fit the bill in your budget.
     
  16. BabyGap

    BabyGap New Member

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    If I spent a little bit more would it really sound that much better?
     
  17. P07r0457

    P07r0457 New Member

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    well, there is a point of deminishing returns. For what you're looking at it may not matter.

    I had an Avionnix 440.4 (which was well-recommended by several audio forums to me) and it sounded good. However, it did sound a little grainy powering my CDT 61a's at high levels. I switched to a Crossfire TEK 75.2 (given to me free) and they came alive and sounded very clean at volume.

    So could it help? It might be night and day. But that may not necessarily be true in every instance.
     
  18. BabyGap

    BabyGap New Member

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    Thank you very much for the info.
     

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