M8mkIV lpad question

Collapse
This topic is closed.
X
X
 
  • Time
  • Show
Clear All
new posts
  • awm
    Member
    • Feb 2004
    • 40

    M8mkIV lpad question

    Jon or Thomas, lhe lpad is the combo of 15 ohm and 12.5 ohm resistors. Which side is the shunt and which, the series?

    Thanks very much,
    Andy 8O
  • JonMarsh
    Mad Max Moderator
    • Aug 2000
    • 15284

    #2
    The five 12.5 ohm resistors in parallel give the 2.5 ohms for the series leg (Ohms law, ya know!). The 15 ohm resistors were paralleled, then further reduced with the additional series connection across the shunt leg of two 5 ohm resistors(connected in series) in parallel with the 5-15 ohm resistors. The additional shunt network of the two 5 ohm resistors weren't "predicted" by the LSPCAD sim, but were part of the final voicing.

    Regards,

    Jon

    Note that the text in the article describes this connection- I had to double check against it, because the project is a couple of years old, and there's been a lot of stuff flowing through the "buffers" since then!




    Earth First!
    _______________________________
    We'll screw up the other planets later....
    the AudioWorx
    Natalie P
    M8ta
    Modula Neo DCC
    Modula MT XE
    Modula Xtreme
    Isiris
    Wavecor Ardent

    SMJ
    Minerva Monitor
    Calliope
    Ardent D

    In Development...
    Isiris Mk II updates- in final test stage!
    Obi-Wan
    Saint-Saƫns Symphonique/AKA SMJ-40
    Modula PWB
    Calliope CC Supreme
    Natalie P Ultra
    Natalie P Supreme
    Janus BP1 Sub


    Resistance is not futile, it is Volts divided by Amperes...
    Just ask Mr. Ohm....

    Comment

    • awm
      Member
      • Feb 2004
      • 40

      #3
      Ohm who? 8O Thanks, Jon. That's what I thought and went ahead and did, but it's been so long since I took basic physics that I'd forgotten.

      Will hopefully be listening to my M8a's tomorrow night if all goes well.

      Will let you know my impressions.

      Best,
      Andy

      Comment

      • ThomasW
        Moderator Emeritus
        • Aug 2000
        • 10934

        #4
        Remember that they are specifically designed to be sitting on stands of a particular height!




        theAudioWorx
        Klone-Audio

        IB subwoofer FAQ page


        "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson

        Comment

        Working...
        Searching...Please wait.
        An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

        Please push the back button and reload the previous window.'
        An unexpected error was returned: 'Your submission could not be processed because the token has expired.

        Please push the back button and reload the previous window.'
        An internal error has occurred and the module cannot be displayed.
        There are no results that meet this criteria.
        Search Result for "|||"