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  1. 07-16-2012 09:56 PM #1
    VR3
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    Default Polk Audio LSi15 Crossover Modification Thread

    Coming soon!

    Clarity Cap SA, PX, ESA, Mundorf Resistors! Should be fun! :)
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  2. 07-16-2012 10:20 PM #2
    Oldfatdogs
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    Your a busy man lately good for you vr3.
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  3. 07-16-2012 10:33 PM #3
    VR3
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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. 07-21-2012 07:48 PM #4
    VR3
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    Parts, Stock Crossovers + random part from Legacy Empire crossover! :-P
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  5. 07-21-2012 08:04 PM #5
    EndersShadow
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    Trey out of overall curiosity PM me the cost of the upgrade.
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  6. 07-21-2012 09:53 PM #6
    VR3
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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 Name: Dscn4487.jpg‎ Views: 38 Size: 138.4 KB ID: 73188   Click image for larger version Name: Dscn4488.jpg‎ Views: 33 Size: 152.6 KB ID: 73189  
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  7. 07-21-2012 09:56 PM #7
    EndersShadow
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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...
    There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick

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  8. 07-21-2012 10:00 PM #8
    VR3
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    I do not...

    What would be tricky about it?
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  9. 07-21-2012 10:09 PM #9
    VR3
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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! :)
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  10. 07-21-2012 10:37 PM #10
    EndersShadow
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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.
    There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick

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  11. 07-21-2012 10:39 PM #11
    VR3
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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! :)
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  12. 07-21-2012 11:04 PM #12
    VR3
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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. 07-21-2012 11:27 PM #13
    hochpt21
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    Keep pluggin...I am rooting for you for selfish reasons
    2-channel
    Sources: Pro-ject 2.9 wood with Grado Gold cartridge; Squeezebox Duet; Oppo BDP-83
    Amplification: PS Audio GCPH; PS Audio DLIII(Cullen mods IV); Parasound Halo P3; B & K Reference 200.2
    Speakers: Polk - LSi15's

    HT
    Amplification: Sony - STR-DG1000; Outlaw 200 Mono; Speakers: Polk - CS2, Monitor 70's, RC80i's; Video: Optoma HD20; FAVI HD-100

    Work desk rig: Audioengine A2's; Jolida Glass FX DAC Mini
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  14. 07-21-2012 11:33 PM #14
    VR3
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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! :)
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  15. 07-21-2012 11:35 PM #15
    skrol
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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
    Stan

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    Polk RTA11TL (RDO198-1, XO and Damping Upgrades)
    Denon: DRA-835R, DVD-2910, DRM-800A; Monster HTS3600-MKII, Grado SR-225i

    HT:
    Denon AVR-888, Polk: RM7, PSW10

    Other stuff:
    Denon: DRA-825R, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A & 5B, TSi100; Pioneer CT-6R, PL-530; Ortofon OM5E
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  16. 07-21-2012 11:52 PM #16
    VR3
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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. 07-22-2012 12:29 AM #17
    VR3
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    We are pretty sure this configuration will work...
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  18. 07-22-2012 02:08 AM #18
    VR3
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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. 07-22-2012 10:19 AM #19
    Face
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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.
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  20. 07-23-2012 09:32 PM #20
    VR3
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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. 07-23-2012 09:36 PM #21
    Face
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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
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  22. 07-23-2012 09:43 PM #22
    VR3
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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. 07-24-2012 02:52 AM #23
    cbow8
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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***
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  24. 07-24-2012 02:56 AM #24
    cbow8
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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!!!
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  25. 07-29-2012 05:11 PM #25
    VR3
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    Mirror imaged pair!

    Just gotta attach the driver wire and test these bad boys out! :)
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  26. 07-30-2012 07:28 PM #26
    VR3
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    Free air test..

    SOUNDS GREAT!
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  27. 09-16-2012 05:02 PM #27
    VR3
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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. 09-17-2012 02:13 PM #28
    zingo
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    Nice looking components; should be an easy install.
    Jake

    Quote Originally Posted by Erik Tracy View Post
    What difference does it make? None if you can't tell a difference.
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  29. 03-09-2013 08:33 PM #29
    VR3
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    My official internal LSi15 modification, woofer network! :)
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  30. 03-10-2013 04:44 PM #30
    VR3
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    Tweeter network, nice and compact
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