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  1. #1

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    Default Polk Audio TSi400 and CS10 Crossover Modification Thread

    This is my second set of TSi400... will post pics of those too...

    Clarity Cap ESA, Solen, Bennic electro bypassed by SA series, Mundorf Mox resistors, Jantzen tweeter ind uctor - CS10 is Clarity Cap PX and Mundorf Mox - all point to point wiring, the works :)
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  2. #2

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    Cs10
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  3. #3

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    Looking great Trey! Can't wait to see what these sound like in my system...

  4. #4

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    Yeah Buddy!! (Your screen name is awesome)
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  5. #5

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    Quote Originally Posted by VR3 View Post
    Cs10
    Hi Trey,

    On the CS10's, did you replace the inductors as well as caps and resistors?

    What values did you use for each? This is giving me ideas!
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer

  6. #6

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    I did not replace the inductors on the CS10, we kept it budget. The only reason we replaced the tweeter inductor in the TSI400 is one of them was fried... (half of the crossover was melted with blown resistors, crazy stuff)

    But I believe the tweeter inductor is 22 awg, .22 mh
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  7. #7

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    So after receiving these last Friday and unpacking the asteroid armageddon-proof package Trey sent, I finally had the time yesterday to get this installed and start playing around with placement of the front stage and burning in the components.

    I'll have to spend some time in front of all these before I can comment on sound, although due to the circumstances of how I picked these up I won't be able to do a before/after comparison on the TSi400's. The CS10 I can, however, so stay tuned.

    Meanwhile, I'm just stoked to have these operational. I originally got the TSi400's from a friend of a friend, who was supposedly an "audiophile" that had a ton of speakers around he wanted to get rid of. The truth was that he's a goofball that had these Polk floorstanders and some Boston Acoustics bookies that he had hooked up incorrectly to an Onkyo receiver he was beating to hell by playing music to volumes past clipping. He 'demoed' the speakers by cranking AC/DC to ear-bleeding levels that made me plead for him to turn the volume down before he blew something and ultimately I left the room frustrated. I'm not sure if they were already jacked or if it was that session that did it, but as Trey mentioned he had sufficiently blown the tweeters out of both, and fried each crossover beyond function.

    I'd been contemplating sitting down to figure out how to fix the crossovers myself for a few months, but realized that my schedule was just too hectic for me to tackle something like that, so thankfully I've been around this forum enough to be familiar with the work Trey does and figured it'd be a great opportunity to get upgraded crossovers into these speakers to make them shine beyond how they were even before their previous owner trashed them. And I have no doubt looking at the quality work VR3Mods did that this is the case.

  8. #8

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    Thanks for the kind words my friend! :-) To say he destroyed the crossovers is an understatement, he actually melted the terminal mount, melted the traces around the resistors, blew just about every resistor and fried an inductor... hehehe... that is hardcore stuff!

    I can't wait to read your review,
    Thanks again :-)
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  9. #9

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    I still have some breaking in of the crossovers and honing in of speaker placement to do, but I wanted to express my excitement today over watching an episode of Breaking Bad last night. At a particularly tense moment from Walt (seems there's been a lot of those lately) when he's growling at Jesse the depth and clarity from the modified CS10 was astounding. To that point I had still found the center to be a bit lifeless and boxy-sounding, so I'm thinking the burn-in is doing its magic on these.

    Stay tuned for further review of the system, and hopefully I'll dial in the TSi's in the near future as well.

  10. #10

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    Thats awesome man! It takes a solid 250 hours, particularly on the ESA stuff...
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