ca i use 2 center channels???

EDUARDO
EDUARDO Posts: 14
edited November 2009 in Basic Hookup/Wiring Questions
I hve a proyector. not a TV
Yamaha 7.1 and lots of speakers.
have 2 CSi 175 center channels
Can I put one speaker on top and the other in the bottom of the proyection panel as center speakers?
or will it be better to put both on top or down the proyection panel?
Don´t worry about the impedance thing, 2 4ohm speakers in serial.

Thanks for your opinions.
I JUST KNOW THAT I DON'T KNOW ANYTHING !!!
Post edited by EDUARDO on
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    I suppose you could...

    But the question to ask would be "Why?"
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

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  • thuffman03
    thuffman03 Posts: 1,325
    edited November 2009
    Yes you can. BB3 is gonig to be doing that with his HT. You just need to get a IC Y adaptor to send the signal to two seperate channels of a HT amp or to both the Left and Right of one 2 channel amp.
    Sunfire TGP, Sunfire Cinema Grand, Sunfire 300~2 (2), Sunfire True Sub (2),Carver ALS Platinum, Carver AL III, TFM-55, C-19, C-9, TX-8, SDA-490t, SDA-390t
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  • EDUARDO
    EDUARDO Posts: 14
    edited November 2009
    Why???
    Because if I put one on top it will be 2 feet under the roof, to high!! and the L/R channels will have to be up.

    If I put one on the bottom will be at 3 feet from the floor so the L/R will have to be too down or the sound image will not be ok.

    So I think one up and one down the proyection screen pointing to the sweeet spot will permit to put the L/R speakers in the horizontal middle of the proyection screen, at the sides of course.

    My concern is about sound (if the above set up is better or not than putting one or two speakers up or down the proyection panel) not how to conect them.

    Sorry about my english.
    I JUST KNOW THAT I DON'T KNOW ANYTHING !!!
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    If you angle the center correctly, you should only need one.

    What you just described you were going to do would negate any "need" to run two of them. :)
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

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  • eprater1
    eprater1 Posts: 175
    edited November 2009
    im just wondering what a proyector is ??????
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  • xj4094dg
    xj4094dg Posts: 1,158
    edited November 2009
    eprater1 wrote: »
    im just wondering what a proyector is ??????

    He's from Panama moron. I salute his willingness to communicate with us in American as best he can. WTF?
    "The good thing about science is that it's true whether or not you believe in it." Neil deGrasse Tyson.
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  • EDUARDO
    EDUARDO Posts: 14
    edited November 2009
    Sorry, is PROJECTOR??

    Proyector is in spanish.

    My english is not so good, so I did not understand the:
    "What you just described you were going to do would negate any "need" to run two of them."

    Can you explain that to me, in a little more simple way.
    I will apreciate that.

    EDUARDO AH.
    I JUST KNOW THAT I DON'T KNOW ANYTHING !!!
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  • Face
    Face Posts: 14,340
    edited November 2009
    Why do you want to use two centers instead of single center?

    Multiple center channels can cause comb filtering(cancellation of certain frequencies).

    Welcome to Club Polk!
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    EDUARDO wrote: »
    Sorry, is PROJECTOR??

    Proyector is in spanish.

    My english is not so good, so I did not understand the:
    "What you just described you were going to do would negate any "need" to run two of them."

    Can you explain that to me, in a little more simple way.
    I will apreciate that.

    EDUARDO AH.


    If you angle the center channel as you said you were going to do, then you won't need to run two center channels, since the one speaker will be angled to hit the correct listening height. :)
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
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  • EDUARDO
    EDUARDO Posts: 14
    edited November 2009
    The sound will not cancell, same 2 speakers in serial mode.
    I got the point, is just that I have two centers.

    My projection screen is abot 9x6 feet. when I put 1 center some sounds apear to come from the roof not from the center of the screen.
    I was wondering if putting one in the center top and one in the center bottom of the screen and the L/R at the middle/sides of the screen will make better and coherent sound effects.

    Tanks.
    I JUST KNOW THAT I DON'T KNOW ANYTHING !!!
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  • Polk addict
    Polk addict Posts: 558
    edited November 2009
    All you need to do is angle your center speaker correctly... Then you will only need one...

    edit: I've tried using two center channels, but I think the image presented by one center speaker is better...
    Chiranth
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited November 2009
    The only way you'll know is by trying it yourself.

    I think you'll probably have better results with a single center channel though.

    Have you tried using a single center channel, and placing it below the screen? I'd try that before putting the second center channel in.

    Put the center below the screen and angle it upwards towards your listening position, with the tweeters firing directly towards your ears. You may get better results than you are with it located above the screen.
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  • Squishy Tia
    Squishy Tia Posts: 79
    edited November 2009
    This is one of the things I like about the Polk CSi centers. They're angled on top, but flat on the bottom. This allows you to place directly above the screen/monitor (flat side), or underneath pointing up at the listener (angled side down). You get the best of both worlds.

    My only gripe with the aforementioned center channel line is that it has zero mounting options without drilling into the speaker, thus making them incredibly useless as my center would need to be wall mounted above my computer monitor (computer is my HT center) and there is no room on my desk to put any speakers.

    But yeah, angle the speaker up or down toward the listener. Just put it as close to the screen/monitor as you can.
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