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  1. #1

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    Default 6 LSi9 line source...

    any down side...and if works, whats the best way to power the column of LSi9s?

    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

  2. #2

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    haha holy hell, whats your plan this time!

  3. #3

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    Power with natural gas or coal.

  4. #4

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    Your going to have problems with that. Line arrays work with the driver spacing calculated and equal. Your not going to have that, not to mention you don't need all those tweeters.

    You need about 2kW to drive it.

    your also going to have signal delays from the crossovers...

  5. #5

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    I would split them into 4 columns of 3 LSi9's and go retro with quadraphonic sound :p
    DKG999
    -----------------------------------------
    HT System: LSi9, LSiCx2, LSiFX, LSi7, SVS 20-39 PC+, B&K 507.s2 AVR, B&K Ref 125.2, Tripplite LCR-2400, Cambridge 650BD, Signal Cable PC/SC, BJC IC, Samsung 55" LED

    Music System: Magnepan 1.6QR, SVS SB12+, ARC pre, Parasound HCA1500 vertically bi-amped, Jolida CDP, Pro-Ject RM5.1SE TT, Pro-Ject TubeBox SE phono pre, SBT, PS Audio DLIII DAC

  6. #6

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    What are you trying to achieve by doing this?

  7. #7

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    Terrible idea. A line array needs to be designed from the ground up, not just by stacking a bunch of monitors up.

    Amulford hits the major points, but that's just scratching the surface of why its a bad idea.

  8. #8

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    why not just get a pair of AV123 LS6 Line source towers? They've been getting nothing but rave reviews. And if you really wanna take it a step further, wait for its bigger brother LS9

  9. #9

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    That will only work if you do it with a seventh pair and one of those $15 T-amps.

  10. #10

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    I bet it would sound good, why all the nay sayers?
    Dodd - Battery Preamp
    Monarchy Audio SE100 Delux - mono power amps
    Sony DVP-NS999ES - SACD player
    ADS 1230 - Polk SDA 2B
    DIY Stereo Subwoofer towers w/(4) 12 drivers each
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    Outlaw ICBM - crossover
    Beringher BFD - sub eq

    Where is the remote? Where is the $%#$% remote!

    "I've always been mad, I know I've been mad, like the most of us have...very hard to explain why you're mad, even if you're not mad..."

  11. #11

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    LOL! I was thinking of doing that w/ my 2 60's and 4 30's. Run them in 7 ch. stereo and call them Monitor 120's:D
    I refuse to argue with idiots, because people can't tell the DIFFERENCE!

  12. #12

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    Bolt 6 lsi9's together like you have pictured and from henceforth refer to them as LSI54 AURAL DEVASTAT0RZ
    Samsung HL-T6176S DLP HDTV-----Denon AVR-3808ci-----Panasonic DMP-BD30-----Toshiba HD-XA2-----Fronts: LSi9-----Center: LSiC-----Side Surrounds: LSiFX-----Rear Surrounds: LSiFX-----Sub: Velodyne SPL-1500R

  13. #13

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    Quote Originally Posted by hoosier21 View Post
    I bet it would sound good, why all the nay sayers?
    Nah, you'd get all kinds of comb filtering and delayed echo. Your soundstage would be ****, too.

    'course that all depends on what you're tryin to do...

  14. #14

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    Quote Originally Posted by iskandam View Post
    why not just get a pair of AV123 LS6 Line source towers? They've been getting nothing but rave reviews. And if you really wanna take it a step further, wait for its bigger brother LS9
    yep...was try to find a cheapER alternative to the LS9 :D

    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

  15. #15

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    Quote Originally Posted by GelatinousFury View Post
    Bolt 6 lsi9's together like you have pictured and from henceforth refer to them as LSI54 AURAL DEVASTAT0RZ
    lol...LSi54 :D
    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

  16. #16

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    Quote Originally Posted by hockeyboy View Post
    Power with natural gas or coal.
    too polluting...how about this ;)

    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

  17. #17

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    Quote Originally Posted by amulford View Post
    Nah, you'd get all kinds of comb filtering and delayed echo. Your soundstage would be ****, too.

    'course that all depends on what you're tryin to do...
    whats comb filtering anyways? it seems that only polk is dealing it with the cascade taper xovering...?
    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

  18. #18

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    Comb Filtering is constructive and destructive interference from two points of identical sound. It messes with your sound stage and imaging. It occurs with one set of front speakers also because of reflections in a room. This is why people are also into room treatments.

    I tried mixing RTi6's with R50's. They were about 1.5 feet apart of eachother and separated by about 8-10 feet. At first it sounded great. They I realized that imaging was pretty much lacking. I stacked the 6's on the 50's like you have and horizontal imaging greatly improved. However, I still lack height and depth. I would imagine 6 sets of front speakers to have all sorts of problems.

  19. #19

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    does comb filtering only happen when theres 2 speakers?

    my setup has a hard time reproducing height, everything else is fine....
    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612

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