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  1. #61

    Member Sales Rating: (0)

    Join Date
    Jul 2007

    Default Thank you Michael

    Quote Originally Posted by McLoki View Post
    Sorry the modification to the 163 is complete. As for a first post to ask for the service manual - I will respond with I purchased mine off of e-bay for about $15.00. (was a .pdf file that I downloaded so no shipping)

    Stick around and contribute some. Let us know what your equipment is and what your goals are.

    Other than that - for now - welcome to club polk.

    I will try to do the upgrade of my op amps, do you know if the T753 and the T163 dsp chips are compatible? this is for exchange circuits on those equipments. Thank you in advance.

  2. #62

    Member Sales Rating: (7)

    Join Date
    Aug 2004
    Central Illinois


    The T753 is an AVR (I think) - the T163 is a pre/pro. I would venture a guess though that they have a similar design and if you take the cover off your 753 and they have NJM 4552 chips as the DSP - you could replace them as I did. (at least on the pre-out board where I changed mine).

    Open it up and see what is in there....

    I would recommend getting the service manual for your AVR before you start tearing into it. You can pick it up here for $15.00

    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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