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  1. #1

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    Question Lsi speaker mod's?

    Has anyone ever done any modification's to the LSi speakers' crossover's or electronics to improve their sound or are they too good to make any improvements? Just a thought since I would like to try doing some mod's myself. Also does anyone know of any good mod's for Sunfire amps that I can try. Thanks for any input.

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    Quote Originally Posted by Pepi28 View Post
    Has anyone ever done any modification's to the LSi speakers' crossover's or electronics to improve their sound or are they too good to make any improvements? Just a thought since I would like to try doing some mod's myself. Also does anyone know of any good mod's for Sunfire amps that I can try. Thanks for any input.
    The LSi's are very good right out of the box. I'm sure some improvements could be made, but the law of diminishing returns would certainly work against you very quickly. If you wanted to spend like $500-1000 on special hand made esoteric caps, resistors and inductors you could find them, but really kind of pointless.

    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 Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    I've modified some LSi7 and it was a fun project but I probably wouldn't do it again. I was going to modify my LSi15's but its a very difficult project from my perspective. If you remove the crossover and side firing woofer, you should be able to clearly identify why. You'll have to disconnect the XO harness from all the upper drivers as well so you can remove the entire assembly.

    The main problem is space in the cabinet, as the space on the board for all but minor upgrades is at a premium PLUS you will have to rewire your binders, realize the port is in the way....blah blah.

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    I guess I wont be touching my 15's then.

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    Don't let me discourage you, lead the way.

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    I have read a thread a while back of someone adding dynamat to the inside of his LSi speakers with good results in increased clarity. You might want to try that as a relatively cheap mod. I have been thinking about doing that to my setup, but then again, I am pretty happy with the sound I am getting now.

    Michael

    Edit - Found the link to the dynamat thread...
    Last edited by McLoki; 04-06-2007 at 11:56 PM.
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)

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    Quote Originally Posted by dorokusai View Post
    Don't let me discourage you, lead the way.
    +1. But just make sure and do some research. Most times experimentation is the key.
    "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 Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    Quote Originally Posted by McLoki View Post
    I have read a thread a while back of someone adding dynamat to the inside of his LSi speakers with good results in increased clarity. You might want to try that as a relatively cheap mod. I have been thinking about doing that to my setup, but then again, I am pretty happy with the sound I am getting now.

    Michael

    Edit - Found the link to the dynamat thread...
    I have heard in my travels that adding damping material to the actual port tube, is beneficial.....and its true.

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    Quote Originally Posted by dorokusai View Post
    I have heard in my travels that adding damping material to the actual port tube, is beneficial.....and its true.
    Outside of the port tube I assume (since inside would change the port diameter)? I am still thinking about this mod at some point rather than trying to get new speakers - I am just that happy with my LSi's.

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)

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