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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


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    SP14 and PH16 Preamps Voltage Gain in dB ?

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    mijohn


    Posts : 119
    Join date : 2013-06-19

    SP14 and PH16 Preamps Voltage Gain in dB ? Empty SP14 and PH16 Preamps Voltage Gain in dB ?

    Post by mijohn Sun Jun 14, 2015 2:33 am

    Does anyone know what voltage gain in dB I should get from the VTA SP14 and PH16 preamps in their standard kit configurations?
    (without the addition of SUT's in the PH16 case)

    Buying a new cartridge so the info would be helpful.

    Thanks.


    Last edited by mijohn on Mon Jun 15, 2015 12:28 am; edited 3 times in total
    arledgsc
    arledgsc


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    Join date : 2012-11-30
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    SP14 and PH16 Preamps Voltage Gain in dB ? Empty Re: SP14 and PH16 Preamps Voltage Gain in dB ?

    Post by arledgsc Sun Jun 14, 2015 3:36 pm

    Voltage gain of the ST-70 per ch. into an 8 ohm load is about 29dB. 31.2dB for the ST-120. This is considering 0.6V input sensitivity yields max. power output and output voltage measured at the speakers.
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    mijohn


    Posts : 119
    Join date : 2013-06-19

    SP14 and PH16 Preamps Voltage Gain in dB ? Empty Re: SP14 and PH16 Preamps Voltage Gain in dB ?

    Post by mijohn Mon Jun 15, 2015 12:21 am

    Thanks Arledgsc, but i'm looking for the voltage gain of the VTA SP14 and PH16 preamps. I've noted your Dynaco specs for future reference though.
    Roy Mottram
    Roy Mottram
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    SP14 and PH16 Preamps Voltage Gain in dB ? Empty Re: SP14 and PH16 Preamps Voltage Gain in dB ?

    Post by Roy Mottram Tue Jun 16, 2015 7:00 pm

    SP14 gain is 10db, PH16 gain is 55db
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    mijohn


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    SP14 and PH16 Preamps Voltage Gain in dB ? Empty Re: SP14 and PH16 Preamps Voltage Gain in dB ?

    Post by mijohn Tue Jun 16, 2015 11:07 pm

    Thanks Roy!

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    SP14 and PH16 Preamps Voltage Gain in dB ? Empty Re: SP14 and PH16 Preamps Voltage Gain in dB ?

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