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Speaker wiring experiment.

Discussion in 'Home Cinema Speakers' started by faggy292, Aug 27, 2005.

  1. faggy292

    faggy292
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    Am I right, or wrong, in thinking that if you wired two speakers up in a series not a parallel circuit, that where rated at say 80w each, you could then pass almost twise the wattage through them as each of them will handle half of it.
    Like when you connect two light bulbs up in a circuit and they both glow half as bright as just one does on the same battery.
    What do you lot out there think? I would like some opinions before I go and blow up my speakers! :rolleyes:
     
  2. The_Mole

    The_Mole
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    Dont know about this. Surely the first speaker in the circuit would recieve the full load. This could blow before the signal reaches the second speaker.
     
  3. Mandel

    Mandel
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    No, thats wrong. Two speakers wired like this:

    +ve of amp ----- +ve speaker one -ve ------ +ve speaker two -ve ----- -ve of amp

    ie "In series"

    will act as one speaker of twice the impedance. So you can turn two 4 ohm speakers into one 8 ohm speaker like this. Providing the are the same type of speaker they will both recieve exactly half the load.
     
  4. Londondecca

    Londondecca
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    What advantage is gained by this approach
     
  5. eviljohn2

    eviljohn2
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    Having multiple speakers can help spread the sound field - sometimes useful at the back of a larger room if the amp isn't 6/7.1 capable. By connecting the speakers in series it provides an easier load to the amp but each speaker will be quieter than if one was connected. By connecting them in parallel each speaker should remain at the original volume but it presents a much harder to load to the amplifier. :)
     
  6. BestGear

    BestGear
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    ...would just add that if you connect them in parallel, (ie, both +'s and both -v's) you HALF the impedance (resistance) giving you a 2ohm load if they were 4 ohm speakers to start with - which drives your amp much harder... and will certainly make it hot or even damage it.

    If your amp claims its safe into 2 ohms, you could try it this way too... it will (should unless the amps PSU is crap!) result in a higher power output.

    DJ
     
  7. alexs2

    alexs2
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    True in some respects,but there are very few truly 2 ohm capable amps/receivers around in anything under the sub £2k region.

    Many of those that can just about run a 2 ohm load do so with very reduced outputs due to current limiting protection circuits coming into play.
     

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