splitting the power of an AMP to two speakers - Honda Civic Forum



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Old 03-27-2009   #1
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splitting the power of an AMP to two speakers

just a though, and i needa know what happens.

pretend i have a (mono) 1 channel amp that outputs 100w

if i connect two small subwoofers (or speakers for that matter) in parallel connected to that mono channel amp,

how would the power (or wattage) be divided?

would each woofer get 50w (hypothetical)

is this unsafe or any reason?




reason for asking:

i have a spare 2ch amp that supports 2x75w

i also have 4 bass shakers that are 50w each. i want to connect the bass shakers to that spare amp. each channel would support 2 shakers.

is it doable?
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Old 03-28-2009   #2
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Re: splitting the power of an AMP to two speakers

Is the amp bridgeable? Are the bass shakers SVC or DVC? What ohms are the bass shakers? Gotta know all that before we move on.
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Old 03-29-2009   #3
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Re: splitting the power of an AMP to two speakers

yes, you're right on the math. you just have to watch the impedance and whether you connect them in series or parallel depending on if the amp can handle 2ohms or not. most amps are 2 ohms stable if they're decent. if the shakers are 4 ohm each, then connect them in parallel. they'll get ~75w each, and then just turn the gain down so they don't distort. if the amp cannot handle 2 ohm, then connect them in series. they will get 37.5w each. if the shakers are 8 ohm, then you should be good with parallel, but they'll still only get 37.5w each due to the impedance being double.

Last edited by electric130; 03-29-2009 at 12:40 PM.
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Old 04-02-2009   #4
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Re: splitting the power of an AMP to two speakers

Yes, sleepy they can be done, but each sub, if wired to match the amp, will get, at RMS, 37.5. If things don't match up correctly, you are looking at around 20W RMS. Do you have the part numbers for the speakers and amp, I'll give you the actualy RMS and tell you whether you should just get a new amp. Also, make sure that the amp has the hpf/lpf you need depending on what you want it for. I'm selling my 4x75W Pioneer soon if you are interested.
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Old 04-02-2009   #5
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Re: splitting the power of an AMP to two speakers

they're not subs, just shakers. for example:



math still applies though
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Old 04-02-2009   #6
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Re: splitting the power of an AMP to two speakers

they're not subs, just shakers. for example:



math still applies though
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