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Thread: Source components for M2 network

  1. #1
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    Source components for M2 network

    Hi all!
    I decided to try the network on my M2 clones after "riding bareback" for 2 years.
    I have a hard time sourcing the components. Especially the resistors.
    Anybody knows a good source?
    The components are

    Capacitors
    3.3uF 250V
    4.7uF 250V

    Resistors
    13R 30W
    11R 10W

    Thanks!

  2. #2
    Senior Member pos's Avatar
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    caps are WIMA MKP10
    There are different models in this series, with different tolerance rating and leg spacing.
    IIRC I got mine there: https://www.ebay.fr/usr/electricslee...72.m2749.l2754

    As for the resistors, I used 3 of these 39 ohm 25W resistors in parallel for 13 ohm (75W) and 2 of these 22 ohm 16W resistors in parallel for 11 ohm (32W).

    Wattage rating is very relative, and can be exceeded on peaks, but here is a comparison:
    The original lpad with 30W/10W resistors can take around 50W in, resulting in about 6W into the D2
    This version here with 75W/32W resistors can take around 120W in, resulting in about 15W into the D2

  3. #3
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    voltage rating

    Thanks a lot Pos
    How critical is the voltage rating of the capacitors?

  4. #4
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    Quote Originally Posted by johanwholst View Post
    Thanks a lot Pos
    How critical is the voltage rating of the capacitors?
    Not very critical at all!

    OTOH, some people presume ( myself included ) that higher voltage capacitors can sound better ( it's a very nuanced difference ) due to their construction usually employing thicker parts and a tighter wrapping technique ( so goes the lore ) resulting in a capacitor that's slightly less prone to micro-phonic resonances ( as one plus ).


  5. #5
    Senior Member srm51555's Avatar
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    Per Thomas, if you use your 2450SL's you will need to add an autoformer

    Here is what he recommended:
    https://www.ebay.com/itm/Audio-Autot...HowX:rk:1:pf:0

    I've been using this for a year or so now with good results. He had super fast shipping and excellent communication.

    Thanks,
    Scott

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