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  1. #1
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    Capacitance question

    Hi - I just bought a Lyra Etna and before I set this up I want to figure out what the loading should be. I have a Synergistic Research Excite phono cable and I'm no sure what the capacitance is ( nothing i could find on the website). I also need the capacitance of the internal wiring of the VPI FatBoy. If you can help please let me know!!

  2. #2
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    Re: Capacitance question

    Welcome to the forum.

    I have no clue but I am sure someone can help.
    Fleetwood Deville by Oswald Mills Audio, Vienna Acoustics Haydn Jubilee, Wharfedale Linton w/ stands, Klipsch RB-75, Klipsch RP-160M.

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  3. #3
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    Re: Capacitance question

    It’s an MC Cart so unlike a MM cart, the capacitance doesn’t really matter much. Hopefully your phono pre has adjustable resistive loading so you can dial in your new and awesome cart! Congrats and enjoy.
    Tom

    Audio:
    Amati Futura Mains
    Amati Homage VOX Center,
    Proac Response 1sc Rears,
    Three MC2301's for L,C,R
    MC 602 for the rears
    C 1100, MX 151, MCD 1100, MR 77
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  4. #4
    Senior Member
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    Re: Capacitance question

    Congrats! The Etna is a top shelf cartridge.

    And, welcome to AS!
    _______________

    Mike

    Amplification: MBL 6010D, MBL 9008A Monos
    Analog: Kuzma R, Kuzma 4Point (11”), MSL Ultra Eminent EX
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  5. #5
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    Re: Capacitance question

    Quote Originally Posted by W9TR View Post
    It’s an MC Cart so unlike a MM cart, the capacitance doesn’t really matter much. Hopefully your phono pre has adjustable resistive loading so you can dial in your new and awesome cart! Congrats and enjoy.
    Hi Tom, thanks for responding. I thought it was the other way around? I thought capacitance value didn't matter for MM carts but does for MC. In the instructions for the Etna J. Carr provides a table to come up with the proper loading. For this apparently the capacitance is needed but I don't have it. BTW I see you have Ohm F speakers - I had a pair of those in the 1980's - awesome speakers...!

    Brian

  6. #6
    Senior Member
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    Re: Capacitance question

    Thanks Brian - we are enjoying the F’s at our lake home. Fun speakers.

    MM carts are very capacitance sensitive - because their resistance and inductance is very high they interact with the arm and cable capacitance.

    MC carts have very low resistance and inductance so the cable and arm capacitance is much less of a factor.

    If you need to guess, a value of 20 pF / ft is ‘in the ballpark’ but cables vary so much in their construction it could be anywhere from 10 pF/ft to 100 pF/ft.
    Enjoy your new cart - it’s a beauty!
    Tom

    Audio:
    Amati Futura Mains
    Amati Homage VOX Center,
    Proac Response 1sc Rears,
    Three MC2301's for L,C,R
    MC 602 for the rears
    C 1100, MX 151, MCD 1100, MR 77
    Nottingham Dais with Sumiko Palo Santos Presentation
    SurfacePro 3, JRiver, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC

    Video:
    MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material.

    Lake House:
    Ohm F, MC 275V, C2300, MR 80, Rega P3

    OnDeck:
    McIntosh MAC 4300v

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