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  1. #81

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    Quote Originally Posted by Vassilis View Post
    .
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  2. Default

    Quote Originally Posted by dStam View Post
    DSP , "" , , audio electronics,

    https://www.youtube.com/watch?v=752tGFuihzM

    .

    Quote Originally Posted by dStam View Post
    . ...

    .
    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  3. Default

    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  4. Default

    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

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    http://www.avmentor.gr/reviews/lab/2...ctrum_8ohm.jpg

    http://www.avmentor.gr/reviews/lab/f..._8ohm_left.jpg
    ... Douglas Self, Trimodal.
    , , “” ( Self AB ) “” A , , , “gracefully” Self. , , AB, , Trimodal.


    http://www.avmentor.gr/reviews/lab/d...z_spectrum.jpg
    -100dBr, hum, .
    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  6. Default

    Quote Originally Posted by dStam View Post
    . ...

    . "" ( ) "" 2 -90 dB) 3 2 3 7 -80 dB.

    -80 -90 dB . .
    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  7. #87

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    , , .
    , , , , , -40dB ( 0,01) Audio Note Jinro, :



    , - setup avmentor 10 - 0,6%

    , , , , ( ), "" .

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    , . , , .
    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  9. Default

    Quote Originally Posted by dStam View Post
    , -40dB ( 0,01)



    , .... 0,6%

    ... .

    THD

    k.................k (%).........ak (dB)


    factor.......percent.......decibel

    1..............100............... 0
    0.5.............50.............. -6
    0.2.............20............ -14
    0.1.............10............ -20
    0.05.............5............ -26
    0.02.............2............ -34
    0.01.............1............ -40
    0.005...........0.5......... -46
    0.002...........0.2......... -54
    0.001...........0.1......... -60
    0.0005.........0.05....... -66
    0.0002.........0.02....... -74
    0.0001.........0.01....... -80
    0.00005.......0.005..... -86
    0.00002.......0.002..... -94
    0.00001.......0.001... -100
    Last edited by Vassilis; 10-25-2021 at 11:39 PM.
    "It is certainly preferable to grow vegetables" as "Class A amplifiers sound better than the alternatives"

  10. #90

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    ;

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    , , , dB ( ), , (%). , -40dB 0,01.

    , :

    a=10^(r/20), "a" "r" dB.

    , , r=20xlog(V2/V1) V2/V1=a, dB ( r) . , x100, ( , 1%).

    , (0,6%) :

    THD=sqr[[(v2)^2+...+(vn)^2]/[(v1)^2]]x100

    [%], v1 v2,...,vn n ( avmentor ).

    dB:

    THD= 20xlog[sqr[[(v2)^2+...+(vn)^2]/[(v1)^2]]]

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