FS: OSA API 312 mic preamp

Discussion in 'Pro Audio' started by JK, Feb 4, 2004.

  1. JK

    JK Guest

    Selling an Old School Audio (API 312 style) mic preamp card...Jensen input
    transformer, original black label 2520 op amp and original API 2503 output
    transformer...an earlier version of the OSA card...sounds great...front
    panel has polarity inversion, 48V phantom switch, -20db pad and switch for
    mic/line..has 1/4" TRS balanced line input also...comes with pinout
    instructions, so you can DIY and the 15 pin end connector...$425 +
    shipping....a powered rack is available, but NOT included with the card.


    JK, Feb 4, 2004
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