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amprx brownbox

  1. Alfmonster

    AmpRX Brownbox for vintage tube Amps

    Has anyone on here used the AmpRX Brownbox (https://www.amprx.net/product.html) with a vintage tube amplifier? It was originally made for voltage regulation for vintage guitar tube amps. Also, does anyone know for certain if these things output Sine Waveforms or does it output square...
    • Alfmonster
    • Thread
    • amprx brownbox brownbox mc225 mcintosh mcintosh mc225 mx110z tube amp voltage regulators
    • Replies: 4
    • Forum: Tube Audio
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