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Do RCA splitters reduce signal quality?

Discussion in 'Audio, Video & Home Theater' started by Funtoss, Jul 5, 2011.

  1. Funtoss

    Funtoss New Member

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    Hi, i m using RCA splitter to connect more speakers on my Logitech Z-2300
    Considering that i have two logitech speakers running at 40w
    and the sub at 200w rms
    and i want to connect pioneer s-j 2100 which run at 75w.

    My question is, will using RCA splitter reduce sound and signal quality?
    also will it have any negative impact on the amp? (Z-2300 have built in amps)
    is it totally okay to use RCA splitters?

    Thanks
  2. BumbleBee

    BumbleBee

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    not really
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  3. Funtoss

    Funtoss New Member

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    so its okay to use RCA splitters? right?
  4. twilyth Guest

    OK, I'm not sure I remember this correctly from basic electrical circuits, but a splitter reduces amperage but not voltage. Voltage is a measure of the potential difference in energy between 2 points and I think that stays the same with a splitter.

    So the real question would be what is more important to the power amps in your speakers. If it's voltage, then it shouldn't make any difference. If it's milliamps, then it will.
  5. BumbleBee

    BumbleBee

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    Yup.
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  6. twilyth Guest

    I'm pretty sure power amps work on voltage levels not amperage, so it should be fine. The problem with spliters is that they're probably not shielded so you might get some noise from EMF's depending on where the splitter is in relation to EMF sources.
  7. BumbleBee

    BumbleBee

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    audiophiles have been using RCA splitters in HiFi systems for a very long time..
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  8. Funtoss

    Funtoss New Member

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    I LOL'D! hahahaha

    sweet guys, thanks very very much! :)

    What's shielding btw?
    Last edited: Jul 5, 2011
  9. BazookaJoe

    BazookaJoe

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    Q.) Do RCA splitters reduce signal quality?
    A.) 100% ABSOLUTELY - but usually by a factor so tiny you'd need a research lab just to detect it.
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    Crunching for Team TPU
  10. micropage7

    micropage7

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    its depend on material, if the splitter uses good material its ok since its function is splitting signal
    shield used to avoid any noise/distrubed signal that come and could reduce sound quality. it could from electric, engine even the audio itself
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  11. BumbleBee

    BumbleBee

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    EMI/RFI (electromagnetic interference/radio frequency interference)

    as long as you buy a double shielded RCA cable or splitter you should be alright, if not you can buy protective caps to attach.
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  12. twilyth Guest

    I used EMF since I said noise from EMF's. EMI in that context would have been redundant.
  13. Funtoss

    Funtoss New Member

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    Do i really need shielding?? i m not an audiophile lol but i would love to get rid of the noise? btw what kind of noise is it?
  14. twilyth Guest

    When I used to do analog, I would hear it as a low frequency hum or rumble. It usually comes from EMF's generated by the 60hz alternating current in electrical wiring. I think you can sometimes get higher frequency harmonics of 60hz but I have no idea under what circumstances that happens.
  15. douglatins

    douglatins

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    I bought a 1USD one and obviously sucked major ass.
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  16. Frederik S Staff

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    If you connect it to the line-out of the sound card it should not pose an issue, since the input impedance is around 50k Ohm the current is very small. So for normal purposes it makes no difference.
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  17. stevednmc

    stevednmc New Member

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    I think the main issue you will run into here is ohms. Your amp will only be able to handle a certain set up. Usually the lower limit is 2 ohms pr channel. Your output from your amp (watts/channel) will change with the ohms (#of speakers on the same channel) For example:
    You have a 8ohm speaker on a channel.You add another 8 ohm speaker to the same channel. That makes the load 4 ohms. It splits the wattage between the two, so you may be under driving the speakers individually, and you work the amp harder. If you had more than that it can actually clip the amp and ruin both it and the speakers. This is of course my experience on a professional concert pa system when i was was an audio engineer. Just make sure you match ohms and watts per channel with your amp to avoid damage. Do the math, its out there, just google it for the formulae!
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  18. timta2

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    That's usually a ground loop problem.
    http://en.wikipedia.org/wiki/Ground_loop_(electricity)

    He isn't talking about connections post-amp but pre-amp. Resistance isn't going to be any kind of a factor here. Although informative, your post will probably just lead to confusion. As someone who was previously an engineer you should know that! :laugh:


    Seriously though, if you hear a difference from using a RCA splitter you need to buy better, more higher-end equipment. You won't.
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  19. Frick

    Frick Fishfaced Nincompoop

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    This this this. It depends on how sensitive your hearing is though and material used.
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  20. stevednmc

    stevednmc New Member

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    Sorry...misread the op!

    Just make sure to use good cables and good connectors...and remember the most expensive doesnt always mean the best. (ie; Monster Cable)
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  21. Frederik S Staff

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    He will not have issues because it is pre-amp basically just splitting a line-out signal.
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  22. BumbleBee

    BumbleBee

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    oh my god this thread should of ended long ago lol
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  23. Funtoss

    Funtoss New Member

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    LMAO yeah, but thanks a lot guys! i learnt new things as well :)

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