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  1. #1

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    Aug 2010
    central Jersey,08859

    Default difference between xfmr designs ?

    I 've seen these 2 types of power transformers and wanted to know if there is a performance difference besides the obvious design feature. The round Toroidal that is found in more modern solid state amplifiers and the box type audio amplifier transformer used more predominately in older tubed or earlier ss amplifiers. I know transformers are all about the windings and how that is done and how many in what direction and so forth.Does either dissapate heat differently, is it a weight issue? So for engineering 101 what is the practical difference between the 2 styles of transformers.

  2. #2

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    Oct 2011
    Pocatello, Idaho


    Toroids are more efficient and have lower radiated noise
    Home Theater
    Onkyo PR-SC5508 Sharp LC-70LE847U
    Emotiva XPA-5 Emotiva XPA-2 Emotiva UPA-2
    Front RTi-A9 Wide RTi-A7 Center CSi-A6 Surround FXi-A6 Rear RTi-A3 Sub 2x PSW505
    Sony BDP-S790 Dishnetwork Hopper/Joey Logitech Harmony One Apple TV
    Two Channel
    Oppo 105D BAT VK-500 w/BatPack SDA SRS 2.3 Dreadnought Squeezebox Touch Apple TV

  3. #3

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    Dec 2009


    As well typically toroids can be up to half the size and weight of an equal VA rated conventional EI core.

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