Speaker placement for 1C

bobt
bobt Posts: 280
edited January 2010 in Vintage Speakers
Try and put the speakers 1 ft off the back wall and 1 ft from the side wall.

You may like it.....give it a try.
Please no ration of crap..just a sugestion to try out. If you don't like it, move it back.
Post edited by bobt on
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited December 2009
    What benefits did you notice with that set-up?
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited December 2009
    Your backwall spacing is about right...but SDA's really need at least 2-3 feet of clearance on the outsides. SDA's are very picky with placement.
    The nirvana inducer-
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    Audioquest Speaker Cables and IC's
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  • bobt
    bobt Posts: 280
    edited December 2009
    If you have a room that is 10-12 feet wide...and what ever long. You may like it.

    The sound stage opens up...you may have much more of the SDA effect.

    Depends on your room..but ..give it a try....if you don't like it..put it back.
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  • MrGlobe
    MrGlobe Posts: 401
    edited December 2009
    I feel like Pac-man reading your posts, just eating up the ...........................'s
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  • TroyD
    TroyD Posts: 13,090
    edited December 2009
    With a failed driver and all??

    BDT
    I plan for the future. - F1Nut
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  • heiney9
    heiney9 Posts: 25,217
    edited December 2009
    I have listened to SDA's only 1 ft away from the side wall and they sound like total ****. And all the drivers were working.

    What I mean by "total ****" is almost complete lack of SDA properties and very boomy, muddy bass.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited December 2009
    Right now, I believe my 2A's are about 17" from the back walls and the left speaker is about 2.75' from the sidewall, and the right speaker is about 1.5' from the sidewall. They're 84" apart from each other, with the sweet spot about 89" from the center point.

    I'm still kind of playing with the spacing from the back walls. I can't go much farther back though, or else the speakers baffles are farther back than my TV, and the center image starts breaking up. This is why I need to get a flat panel to hang on the wall. I get noticeably better bass response with them about 14-15" from the back walls, but at the expense of the center image.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • bobt
    bobt Posts: 280
    edited December 2009
    yeah..with the replacement driver..IF i don't push it..it's ok.

    In a small room..12x 12 or something..12 inches of the back wall ..it needs to be......but the sidewall...thats another story.

    Try 12"...if you don't like it move it 15"..or a little more..just try it.

    If you don't like it...fine. Go back to the 3 feet.
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  • F1nut
    F1nut Posts: 50,753
    edited December 2009
    5 to 6 inches from the rear wall generally works the best. Of course, when you have them one foot from the side walls, basically jammed into the corners, you will have corner loading and therefore will find that they need to be out at least a foot from the back wall to prevent muddy bass. This isn't rocket science.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited December 2009
    bobt wrote: »
    yeah..with the replacement driver..IF i don't push it..it's ok.

    In a small room..12x 12 or something..12 inches of the back wall ..it needs to be......but the sidewall...thats another story.

    Try 12"...if you don't like it move it 15"..or a little more..just try it.

    If you don't like it...fine. Go back to the 3 feet.

    I've been playing around with placement a lot lately...so I'll give it a try sometime. I'm not anticipating myself enjoying it too much though to tell the truth. I'll report back.
    F1nut wrote: »
    5 to 6 inches from the rear wall generally works the best. Of course, when you have them one foot from the side walls, basically jammed into the corners, you will have corner loading and therefore will find that they need to be out at least a foot from the back wall to prevent muddy bass. This isn't rocket science.

    The way I always understood it(at least with subs), is that if you're placing it in the corner, you want one of the spaces to be about double the size of the other space. For instance...if your sub is 6" from the back wall, you ideally want it to be about 12" from the side wall. Giving them different amounts of airspace on the back and sides helps to prevent corner loading. I'm guessing the same principles would apply with a full range speaker.


    I seriously keep thinking about just getting my TV out of my room. It gets used for all of 3 hours a week...so I could easily live without it in there.

    I have another TV in the living room that I can use anyway.

    If I got the TV out of there, the area between the active drivers in my speakers would be completely clear. My rack would still be in the middle, but it only comes up to just above the PR's in my 2A's. With that middle area clear, I'd probably be able to move them back quite a bit more, without degrading the center image.

    Like I said...this is why I need a flat panel hanging on my wall.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • treitz3
    treitz3 Posts: 19,215
    edited December 2009
    Fellas, seriously. If he gets back with the [supposed] broken driver? Then give him help. Until then?

    Rocket Science is not......OK, I'll give him a break here.....

    I'll roll with it.... ;)
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • bobt
    bobt Posts: 280
    edited January 2010
    The China made driver is sill broke....if you push it to hard..it pops..period..end of story..As long as you don't do that it works fine.

    I'm talking about very LOUD volume..which maybe a lot of you don't do...but whatever...

    The placement of the 1c's right now sit in a 12x10 room...they are studio models, i have taken the "feet" off them...they sit on the floor.."carpet"..

    They are basically 1 foot off the back

    wall, 1 foot off the sidewall.....they work perfectly....no "Mud" sound . 3 Feet off the wall (side wall)in this type room....they just sound bad.

    But of course thats just me...move them around..see what you like....

    3 feet off the side wall in a 12foot room is stupid..but hey..do what you want.
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  • heiney9
    heiney9 Posts: 25,217
    edited January 2010
    That's totally the opposite compared to how most feel they sound the best.................but if it works for you...........then enjoy.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • heiney9
    heiney9 Posts: 25,217
    edited January 2010
    bobt wrote: »

    3 feet off the side wall in a 12foot room is stupid..but hey..do what you want.

    That's just about perfect placement for the best attributes of an SDA. Sorry you think it's stupid.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited January 2010
    heiney9 wrote: »
    That's just about perfect placement for the best attributes of an SDA. Sorry you think it's stupid.

    H9

    Never thought I'd say this, but I think Bobt is right for once,

    For a 12 foot room, 3 feet off the side ways gives you less than 6 feet between the two outsides of the speakers, factor in the width of the speakers themselves and you have speakers that are going to be less than 2 feet apart...

    This is not say that I support this "certain individual" in his other posts.
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  • heiney9
    heiney9 Posts: 25,217
    edited January 2010
    If the room is exactly 12' then perhaps 3' on each side is extreme. More like 2 feet and it will give you about 5' in the middle. All these are rough estimates and I forgot that each SDA is almost 17" across so yeah that might not work the best. But having them 1' or less from the side walls isn't all great either.

    We all have to deal with whatever room dimensions we have.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited January 2010
    According to every SDA manual I have read the minimum footage between the speakers is 4', 6' to 8' apart being ideal.

    I'm glad you found what sounds good. A little experimentation goes a long way. Don't know what to tell you about the "China made" driver.
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  • Fongolio
    Fongolio Posts: 3,516
    edited January 2010
    My room is 12' wide and my 1C's are 3 feet off each side wall and about 6" off the back and they sound spectacular. Lots of tight non-muddy bass and huge SDA effect on the many recordings. I guess I'm just stupid.
    SDA-1C (full mods)
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited January 2010
    Fongolio wrote: »
    My room is 12' wide and my 1C's are 3 feet off each side wall and about 6" off the back and they sound spectacular. Lots of tight non-muddy bass and huge SDA effect on the many recordings.

    That's about as proper an SDA set-up as you can get.
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  • Face
    Face Posts: 14,340
    edited January 2010
    Bob,
    Are you still using a non common ground amp w/o the AI-1 interconnect?
    "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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  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    The China made driver is sill broke

    So, does that mean you haven't returned any of the drivers to Polk for inspection?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • headrott
    headrott Posts: 5,496
    edited January 2010
    Jesse, this probably won't be popular but I installed a new MW6511 I got directly from polk (made in China) and it does the same thing described as bobt described. It works fine with less dynamic music/sounds but does pop if you push dynamic sounds (bass) through it. A good example would be when the bombs go off in Valkyrie (the movie starring Tom Cruise). It caused my 2B (left one with the new MW6511) to pop as bobt described. Whay it does this, I don't know. My 3.1TLs (all orignial drivers) DO NOT do that using the same amplifier.
    Relayer-Big-O-Poster.jpg
    Taken from a recent Audioholics reply regarding "Club Polk" and Polk speakers:
    "I'm yet to hear a Polk speaker that merits more than a sentence and 60 seconds discussion." :\
    My response is: If you need 60 seconds to respond in one sentence, you probably should't be evaluating Polk speakers.....

    "Green leaves reveal the heart spoken Khatru"- Jon Anderson

    "Have A Little Faith! And Everything You'll Face, Will Jump From Out Right On Into Place! Yeah! Take A Little Time! And Everything You'll Find, Will Move From Gloom Right On Into Shine!"- Arthur Lee
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  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    Greg, I would contact Polk Customer Service by phone asap and explain what is happening as they have expressed a real interest in this matter.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • bobt
    bobt Posts: 280
    edited January 2010
    Well GEE..guess i'm not a total **** then..since somebody else has the same problem. Dose exactly the problem i said it had.....It works to a certain point.. but if you push it..it pop's...depends on the music your playing too.

    The spacing of the 1C's..in a room thats 12x10 maybe...with carpet and a bunch of junk in it...and windows on 1 side.

    3 Feet off the sidewall...sounded like crap.....it's all up to what is in the room, what the acoustic crap is going on...period.

    I moved the speakers back to 1 foot off the backwall...12" off the sidewall.

    Works great..you could move them more off the sidewall.....see if you like it.
    It all depends on the room acoustic...and whats in there.

    3 feet of the sidewall...in this size room...is junk....but hey..whatever floats your boat.
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  • bobt
    bobt Posts: 280
    edited January 2010
    GEE..F1....what the hell..sombody had the nerve to say they had a problem with the drivers....even to the point that i said exactly what the problem was....

    So i guess..both of us must be **** holes.......

    If you get this thru your head....they do have a problem....but since you know everything..and the rest of the fools that have 20 thousand posts.......what is the problem?????..if you will say they have a problem!

    Gee at this point..try the voice coil winding is crap...but thats a guess.
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  • treitz3
    treitz3 Posts: 19,215
    edited January 2010
    Oh hell, Bob's got a woody.
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    bobt wrote: »
    Well GEE..guess i'm not a total **** then..since somebody else has the same problem.

    What makes you "a total ****" is the way you presented and continue to present the matter at hand. Compare your rants to the post Headrott made for a perfect example of what I/we are referring to.

    You still have not answered my question, have you returned any of the drivers to Polk for inspection?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • bobt
    bobt Posts: 280
    edited January 2010
    Yup..I'm sure...except for the fact..that...there is a problem.

    But i sent Polk an email...they never said they wanted the drivers back,
    Never responded...so have a nice day.....I'M RIGHT...YOUR WRONG...so have a nice day. They Know they have a problem at this point......
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  • bobt
    bobt Posts: 280
    edited January 2010
    I was willing to send the drivers back..they never responded or cared if i sent them back......period.
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  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    bobt wrote: »
    Yup..I'm sure...except for the fact..that...there is a problem.

    But i sent Polk an email...they never said they wanted the drivers back,
    Never responded...so have a nice day.....I'M RIGHT...YOUR WRONG...so have a nice day. They Know they have a problem at this point......

    It would be a wise move on your part not to put money on your above comment.

    http://www.polkaudio.com/forums/showpost.php?p=1211567&postcount=87
    Bobt,

    Sorry to hear that you are encountering problems with our MW6511 drivers.
    The new MW6511 drivers are manufactured to the same specifications as the originals.
    What is the model number of your SDA's?
    What is the make and model of the amplifier or receiver driving these speakers?

    We take this type of problem very seriously and we would like you to return the drivers to us for evaluation.
    Please ship them to my attention, Kim Jasper, c/o Polk Audio, 5601 Metro Drive
    Baltimore, MD. 21215.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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