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My woofer is 18' 600w rms power. so what is the

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Basically you cannot break you woofer with too powerful amp, but you can break it using too weak amp. This is because if you don't have enough watts going to you woofer the cones movement isn't controlled properly. I'm usually using +20% to the woofers RMS and peak power. This will also make the amp last longer because you won't use it at it's peak performance all the time. If possible use manufacturer whose prising policy matches your woofers manufacturers, that way you won't end up with "2000w peak power" cheap amp with real output of 30w. and in the other end cheap woofer won't handle expensive amp with real 600w rms so well, you need to find a midlle way here. Hard to say without knowing the make and model of the woofer.
This is a taste question for some people, and I haven't build a system to match so powerful woofer ever in my life. But I'm pretty sure you won't go wrong with this one.

Posted on May 20, 2011

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Bose 321 power woofer buzzes but produces no audio sound


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I need to know if the specifications for the Perfomance Teknique ICBM-5712DX RMS total wattage is for both coils or per coil. The RMS total wattage rating is 500 watt


The 500W RMS total wattage is for both coils combined. If you want to get REALLY specific, all of the industry-specific specifications are as follows.
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    I dont know how many watts it is


    4 Ohm Stereo Power (RMS): 250W X 2
    4 Ohm Mono Power (RMS): 850W X 1
    2 Ohm Stereo Power (RMS): 450W X 2
    Signal-to-noise ratio: 100 dB
    Frequency Response: 5 Hz - 50 KHz
    Total Harmonic Distortion: 0.05%
    Input Sensitivity: 200mV-4V
    Length: 16.93"
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    Continuously variable 0 - 18dB Bass Boost
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    Im getting a 15 hcca but dont know what amp to get


    try getting an amp to match the RMS i would say maybe mtx rockford or hifonics becuse they have true wattage an will give u the peak an rms of what ever woofer u use

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    What do you mean by the subs should have more watts than the amp.and subs mean woofer ? actually i dont know any thing abt this. what is 8 ohm stereo, 8 ohm bridged,4 ohm stereo. etc etc...?


    If your planning on using a stereo system in your car or home you need to follow some rules otherwise your just wasting money. The watts of a speaker means how much power it can handle. The higher the number the more power it can handle, and usually the louder it can get without distorting. If your amp has more power or close to the wattage rating of the speaker you will blow the speaker, it can even get so hot it ignites. The amount of ohms is the electrical resistance the speaker provides. House speakers usually have 8 ohms where car speakers tend to use 4. 8 ohm stereo means your left and your right are separate channels and each speaker has 8 ohms. 8 ohms bridged means you bridge the left and right channel to increase the power output of the amp and you have to use either 1 8 ohm speaker, or 2 4ohm speakers in parallel to prevent damage to the system. Same goes for 4 ohms. If I remember correctly you want your sub(woofer) to have a wattage rating 20% higher than the amp. Remember if the speaker overheats its no good, but most amps if they overheat they just shut off until they cool off, but only if they state they have a thermal overload protection.

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    I found this amp and I can't seem to figure out what the wattage is?


    You are probably aware on how to use these output figures, but I'll write a quick explanation on the specifications for future readers anyways :)

    The concpet CC-452 amplifier has the following power output specifications:

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    At 4 ohms per channel - 45 watts x 2 (RMS)
    At 2 ohms per channel - 70 watts x 2 (RMS)
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    This means that your amplifier would provide 45 watts of power each for your front speakers, which are normally a 4 ohm load per side (45 watts for left, 45 watts for right), that's unless they are one of those exotic higher end brands (eg: Boston Z6s which are 3 ohms). Rarely, you will find speakers that are rated at 2 ohms per side, but in this instance the amplifier will provide 70 watts of power into each speaker. On your speaker specifications, you will find a value termed "nominal impedance" which will give you the ohm rating of the speakers being used..

    On the other hand, if you "bridge" both channels into a single channel (using a diagram often marked on the speaker terminals of the amp), you could then provide 150 watts into a subwoofer (providing it was a 4 ohm woofer).

    It's not recommended to use this amp bridged under 4 ohms..

    Some subwoofers may be lower than 4 ohms, and you will not be able to use this amplifier for these types of speakers without risking amplifier failure. Also, some subwoofers may have 2 seperate voice coils, and you will have to use both channels of the amplifier seperately (not bridged) in order to correctly connect this type of speaker for use.




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    Subwoofers


    This will depend on the amplifiers capabilities.

    I will give 2 different scenarios.

    #1 Stereo configuration

    If the amplifier supports an RMS power output close to the RMS input power of the subwoofers then run the amplifier in stereo mode. For example 150 watts RMS X 4 channels driven at 20-20khz. (If you can provide a model # for the subs and the amp your looking at I can help you further with this decision.

    Wiring for this is easy and simply involves matching the connectors for 2 of the channels (Front or Rear) to each of the subwoofers.

    #2 Mono Bridged mode.

    If the amplifier is lower power but mono bridgable you can bridge two Pairs of channels and power each of the subwoofers this way.

    Generally speaking a 2 channel bridgable amplifier will be able to at least combine the wattage of each channel into a single monural channel and in many cases its actually higher.

    So you would bridge the front 2 channels into a single bridged mode for one subwoofer. and then you could bridge the read 2 channels into another bridged mono channel for your other sub woofer.

    For example if you had bridgable amplifier thats 50 watts RMS X 4 you coudl very likely (Generalization based on quality of amplifier) send 150 watts RMS to each subwoofer.

    Again I would need to know what amp you're refering to to provide specific wiring instructions. Many Bridging amplifiers either have a single switch that will send them to bridged mode or you would use the positive + terminal from one channel and the negative - terminal from the other channel or a combination of both.

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