Tubes for SP VTB1 and general tube question

Discussion in 'Microphones (live or studio)' started by eFe, Nov 19, 2008.

  1. eFe

    eFe Active Member

    Jul 26, 2003
    Buenos Aires, Argentina
    I own 2 of this units. I like them they are good gear for the price.

    Does any of you recommend some specific tube brand and model that could upgrade the sound?

    And now a general tube question since this is my first tube pre. Ho often do I need to replace tubes?

    Thank you in advance.

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