Can Adcom GFA 5500 ,,,,,,

StarlightWk
StarlightWk Posts: 33
edited April 2006 in Vintage Speakers
Hi guys,

Need some info on Adcom gfa 5500, is it of common ground which is needed to

to power SDA SRS 1.2 ? Thanks in advance .
Post edited by StarlightWk on
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  • heiney9
    heiney9 Posts: 25,203
    edited April 2006
    StarlightWk wrote:
    Hi guys,

    Need some info on Adcom gfa 5500, is it of common ground which is needed to

    to power SDA SRS 1.2 ? Thanks in advance .

    It is not common ground as the transformer has secondary windings. There has been some discussion around here about wether the negative terminals can be connected to each other, I don't recall the answer. Use the search function as the answer is here somewhere as it's been discussed within the last 6 months. Or you could call Adcom and ask them, it may take a while to get a response however.

    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 Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • heiney9
    heiney9 Posts: 25,203
    edited April 2006
    See this link, especially post #13 & 14

    http://www.polkaudio.com/forums/showthread.php?t=26816&highlight=adcom+common+ground

    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 Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • StarlightWk
    StarlightWk Posts: 33
    edited April 2006
    Thanks H9 for the qucik reply . Another question, do u know when were SDA SRS made its debut in the market ? There is a pair for sale in my area, tweeters
    are the silver dome / not the black ones, that I am having now.
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  • read-alot
    read-alot Posts: 812
    edited April 2006
    StarlightWk wrote:
    Thanks H9 for the qucik reply . Another question, do u know when were SDA SRS made its debut in the market ? There is a pair for sale in my area, tweeters
    are the silver dome / not the black ones, that I am having now.


    Here you go http://www.polksda.com/list.shtml
    polkaudio SRS (rdo194 x 8)
    Dodd ELP (separate power supply)
    JC 1 blocks ( strapped )
    Rega Apollo
    MIT (speaker cables) Outlaw (ICs)

    polkaudio SDA2(rdo194x4) (front) polkaudio CRS (rdo194x4)(rear) polkaudio 400i (center)
    B&K 505
    Samsung LCD
    VIP 622
    HSU STF-2
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