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Thread: How many watts are my 2 12" subs?

  1. #1
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    How many watts are my 2 12" subs?

    all i know about them is that they are DUB Mag Audio DUB200 they don't say any thing else on them and they are Dual Voice Coil Subwoofers

    i want to know how many watts i can safely put through them

    and so far i found that my subs are 800w and 500w 400w which one is it ??

    right now i have a KenWood 280W Amp hooked to them

    amp model number KAC 6485




  2. #2
    MySQL Error soundman98's Avatar
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    this is a little too much. there is spoon feeding and this is similar to me swallowing for you.... you need to search using the product model--That you provided!! i did, and sonic electronix came up as the first link--were you got the pic from, and they have that listed in the features list.. it is taking me longer to post this then it did search and find the ratings.

    i am all for helping others learn, but you need to be willing to use search engines, or the search features of the sites-- they are not their for just eye candy..

  3. #3
    Raw Wave
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    Soundman - THANK YOU!

  4. #4
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    hey what is more the one you have to look at Peak: 800 watts or RMS: 400 watts and would i need a 800 watt amp or higher ??

  5. #5
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    RMS

    Need? No.
    "You're just about as useless as JPEGs to Helen Keller" - Wierd Al

  6. #6
    MySQL Error soundman98's Avatar
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    Quote Originally Posted by blafrisch View Post
    RMS

    Need? No.
    wrong. RMS is the best way to compare any audio components. max values are unreliable. (look up RMS and see what it really means) max wattage values are many times completely over emphasized--they might have rated the part using unrealistic testing procedures. while the wrong test procedures can also skew rms values, it is far closer to the truthful, and more reliable rating..

    note:
    there is a ton of resources for learning car audio, i highly recommend that you look them up. a great start is crutchfield.com's learning center--they cover everything from amps to wiring..

    please understand that the best answers are the ones that you find yourself. i know firsthand that if the answer is just given to you, would have a much harder time not only remembering the information, but would also lack the motivation to learn more about WHY things are done the way they are...

    my brother just got his first car, so i am dealing with similar questions at home(though it is a heck of a lot easier when i can show him in person)

  7. #7
    Raw Wave
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    Wrong?
    I interpreted blafrisch as indicating RMS is the wtg.

    RMS is the only way to go! All else are useless else related to RMS (so that RMS can be obtained).


    And despite some suggesting RMS too can be rigged - no it can't - not in the same way as "peak" etc. (To say your 200W RMS amp can output 500W RMS for 2 seconds before melting - maybe....)

  8. #8
    Constant Bitrate
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    Quote Originally Posted by OldSpark View Post
    Wrong?
    I interpreted blafrisch as indicating RMS is the wtg.
    Thank you. That is indeed what I meant.
    "You're just about as useless as JPEGs to Helen Keller" - Wierd Al

  9. #9
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    Quote Originally Posted by soundman98 View Post
    i am all for helping others learn, but you need to be willing to use search engines, or the search features of the sites-- they are not their for just eye candy..
    While I agree that searching is a good thing, stuff like this is confusing for a lot of people. If you want to be unhelpful, at least be right.

    rickybennett:
    The short answer is 800 watts RMS, 2 subs x 400 watts RMS each.

    Audiobahn DUB200:
    RMS Power Range : 400 Watts
    Peak Power Handling: 800 Watts
    Impedance: Dual 4 Ohm

    How many speaker binding posts does your subwoofer enclosure have? If it only has one set (wired for mono), then I'd guess that the dual voice coils are wired in series on each sub and then run in parallel to the binding post. All of this would be internal to the enclosure. Before pumping 800 watts RMS into it, though, all of your other components would need to be up to snuff (wiring from the binding post to each sub would need to be at least 8 gauge, the binding posts would need to handle 800 watts RMS/1600 watts peak, the wiring from your amp to the binding posts would need to be at least 4 gauge, etc). Well, unless you want to start a fire.

    All of this is moot for now, though, because even if you wanted to, the amp you have can't feed this kind of power to your subs. I had the hardest time finding specs on your amp. It took me a few minutes to figure out that you (like many on the internet) incorrectly read the last character as a '5' when actually it's an 'S' ... KAC-648S:

    RMS Power Output (Watts x Channels) 25 x 4
    Peak Power Output (Watts x Channels) 50 x 4
    Power at 2 Ohms (Watts x Channels) 35 x 4
    Bridged Power (Watts x Channels) 70 x 2
    Minimum Impedance Bridged 4
    Minimum Impedance Unbridged 2

    If you bridge your amp, you can feed 70 watts into your massive subs. ...underwhelming, right?

    If your enclosure has two sets of binding posts (i.e., wired for stereo), then you have an interesting problem with your current amp. Since your subs are dual 4-ohm voice coils, you can either run the subwoofer at 2-ohm (parallel) or 8-ohm (series). Unfortunately, your amp is not stable for anything below 4-ohm when bridged. So you either have to run 70 watts into each 8ohm subwoofer or you get to run 35 watts into 2-ohm subs. Either way, you're way underpowered -- which is probably why you're asking this question. If stereo is not necessary, you can convert this back to mono, and you'd have a 4-ohm impedance again (if you wire it right).

  10. #10
    Raw Wave
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    See Soundman - you were wrong.

    It is obviously much quicker asking than it is searching.

    Besides, searching you see all the different confusing answers.
    When asking, chances are you will only get the one.


    I told you the internet as an "existing" resource of info is rubbish. It's a source of living breathing info - reinventing the wheel, and proving all the scientists and text books wrong just as MythBusters did disproving the old mobile-phone & lighting attraction fact, I mean proof... er evidence.... myth... that's it - it's now a Myth! And Busted! (Forget reality - MithBartsers do do things scientifically, hence disproving other science.)

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