icon 4

  1. George 47

    icOn 4 Passive Preamplifier

    icOn 4 (AVC) Passive Preamplifier Review by George Sallit I am fascinated by passive preamplifiers (Control Units?) and have been for a few years. One of the advantages of digital analogue convertors DACs (the only one?) is they have a healthy output of 2V. With power amplifiers giving...