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  1. #1

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    Default Polk Audio LSi15 Crossover Modification Thread

    Coming soon!

    Clarity Cap SA, PX, ESA, Mundorf Resistors! Should be fun! :)
    www.Vr3Mods.com ///// www.Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  2. #2

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    Your a busy man lately good for you vr3.

  3. #3

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    Way to busy!

    I only make threads for "New" mods - hardly for the repeats! Juggling like 5 crossovers right now! :)

    Thanks!
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  4. #4

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    Parts, Stock Crossovers + random part from Legacy Empire crossover! :-P
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    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  5. #5

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    Trey out of overall curiosity PM me the cost of the upgrade.
    Advice is free, the Flea Market is earned - F1Nut

    Lessons cost money, good ones cost LOTS - Tony Beets

    HT: APC H15 | Pio 51FD | Uverse | Xbox 360 | Squeezebox Classic | Integra DTR 5.9 | Carver AV-705x & M1.0t MKII Opt002 | LSi 15 | LSiC | LSi F/x | Kimber Hero IC & 8VS SC

    Office: Win 7 -> DacMagic w/ Pangea PSU | Sunfire TGP-II | Parasound HCA-750ii | Polk RTA 11TL | Cables TBA

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  6. #6

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    Woofer/Midbass Network

    This is a TOUGH modification... definitely had to be creative on parts placement
    Attached Thumbnails Attached Thumbnails Click image for larger version

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    www.Vr3Mods.com ///// www.Version3Audio.com

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  7. #7

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    Trey, do you have the actual speakers there to mount the crossovers in? They look like they could be kinda tricky to mount...
    Advice is free, the Flea Market is earned - F1Nut

    Lessons cost money, good ones cost LOTS - Tony Beets

    HT: APC H15 | Pio 51FD | Uverse | Xbox 360 | Squeezebox Classic | Integra DTR 5.9 | Carver AV-705x & M1.0t MKII Opt002 | LSi 15 | LSiC | LSi F/x | Kimber Hero IC & 8VS SC

    Office: Win 7 -> DacMagic w/ Pangea PSU | Sunfire TGP-II | Parasound HCA-750ii | Polk RTA 11TL | Cables TBA

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  8. #8

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    I do not...

    What would be tricky about it?
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  9. #9

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    I see what might be tricky...

    Looks like I might only have 5" of play here till I might run into a port!

    Interesting - requesting pictures from the owner with measurements now...

    Maybe remote mount the tweeter network! :)
    www.Vr3Mods.com ///// www.Version3Audio.com

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  10. #10

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    Quote Originally Posted by VR3 View Post
    I see what might be tricky...

    Looks like I might only have 5" of play here till I might run into a port!

    Interesting - requesting pictures from the owner with measurements now...

    Maybe remote mount the tweeter network! :)
    Yup lol they almost require either external mounting or having the cabinet to mount in as well. Big PITA as a result IMHO.
    Advice is free, the Flea Market is earned - F1Nut

    Lessons cost money, good ones cost LOTS - Tony Beets

    HT: APC H15 | Pio 51FD | Uverse | Xbox 360 | Squeezebox Classic | Integra DTR 5.9 | Carver AV-705x & M1.0t MKII Opt002 | LSi 15 | LSiC | LSi F/x | Kimber Hero IC & 8VS SC

    Office: Win 7 -> DacMagic w/ Pangea PSU | Sunfire TGP-II | Parasound HCA-750ii | Polk RTA 11TL | Cables TBA

    Bedroom: Uverse | Roku 2 | Samsung LCD | SurroundBar 2000

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  11. #11

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    Well the enclosure is 13 3/8 - I assume by pictures the part is center mounted and the port is probably no bigger than 2.5" - that leaves me roughly 5.18 of mounting depth - lots of assuming here...

    If that is the case, I am currently at exactly 5"

    So I stop NOW, cut the rods - we can remote mount the tweeter network which should be easy as pie...

    Basically drop in the crossover and either hot glue or velcro the tweeter network into place - you would have to remove the woofer to do it...

    We will make it happen! :)
    www.Vr3Mods.com ///// www.Version3Audio.com

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  12. #12

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    Just read there is only 2.5" of clearance..

    Wowzers..

    Time to take a step back and punt!

    @_@
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  13. #13

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    Keep pluggin...I am rooting for you for selfish reasons
    2-channel
    Sources: Pro-ject 2.9 wood Grado Gold cartridge; Oppo BDP-105; Amps: Anthem Integrated 225; PS Audio GCPH Speakers: Polk - LSi15's (sub mod)


    HT
    Amps: Sony - STR-DG1000; Outlaw 200 Mono; B&K Reference 200.2; Speakers: Polk - CS2, Monitor 70's, RC80i's; Video: Optoma HD20; FAVI HD-100


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    Sources: Sony PS-LX410, Denon 3910; Amps: Dared sl2000a, HK 3490, Simaudio Moon LP3; Speakers: Polk - SDA 2A's

  14. #14

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    Already for a solution - just waiting for a confirmation! :)

    Going to do a 6x8 breadboard, going to do a stack for the midbass/woofer network and layout the tweeter network around it - use rubber feet to suspend it off the cabinet walls and mount it right above the woofer - should have plenty of space! :)
    www.Vr3Mods.com ///// www.Version3Audio.com

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  15. #15

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    I was wondering if there is a point where one would be better off abandoning the original crossover mount on the terminal cup and make a new PC board? It seems that there would be plenty of room to mount a board on the back wall. On smaller enclosures is it ok to go external?
    Stan
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    Polk LSi15 (DB840 upgrade)
    Parasound: C/PT-600, HCA-800II; Denon: DVD-2910, DRM-800A; Monster HTS3600-MKII, Grado SR-225i

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    Denon AVR-888, Polk: RM7, PSW10, Marantz UD5005, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, DRA-825R, DCD-660, DRM-700A, DRR-780; Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S8, Monitor 5A, TSi100; Pioneer CT-6R, PL-530; Onkyo CP-1046F; Ortofon OM5E, Marantz PM5004, CD5004

  16. #16

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    external would drastically increase the costs of the modifications...

    Going with a remote mounted perfboard seems to be the way to go
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  17. #17

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    We are pretty sure this configuration will work...
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  18. #18

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    Looks like the above configuration mounted on the rear or front wall is going to be the winner!
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  19. #19

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    I have some pics I can post later that may help. You can search for them too, I've posted them here before.

  20. #20

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    After many back and forth emails, a phone call and a few MS Paint diagrams I believe this is the winner for this first LSi15 modification...

    A mirrior imaged set of these crossovers will fit perfectly in the midbass enclosure.. :)!
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  21. #21

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    Here's what I ended up with. Not very easy to shoehorn inside, but it worked.

    "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

  22. #22

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    Very nice!

    Yep...

    Given the budget of the owner I believe these turned out well...

    If another $150-200 was thrown at them it would be cool to replace the inductors and larger values straight up... :)
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  23. #23

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    i just found this thread!!! why didnt you tell me trey lol??. im working on paying those new monos bud let me see what i can scrounge up id like to take these things all the way!!! going to be my two channel speakers for a while sooo i want them bad a***

  24. #24

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    and..... you know shi*** getting deep when you have to bust out the paint program to draw up some blue prints hahahah. was a bit of work but truely fun. i enjoyed this project and your a nice fella to work with. im really excited for everythign to be home and running on new amps!!!

  25. #25

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    Mirror imaged pair!

    Just gotta attach the driver wire and test these bad boys out! :)
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  26. #26

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    Free air test..

    SOUNDS GREAT!
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  27. #27

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    This is not my cleanest modification unfortunately just because all of the component were mounted and I had to unmount them and start over -

    However, I walk away with a modification anyone can install in their speakers, period...

    So... yeah!
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  28. #28
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    Nice looking components; should be an easy install.

  29. #29

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    My official internal LSi15 modification, woofer network! :)
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  30. #30

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    Tweeter network, nice and compact
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