DSP no audio output volume


    Feb 11 2014 | 2:36 pm
    Hello! I use Firestudio Presonus as audio interface,DSP output volume isn't available (gray, but input is OK) OS Preference Sound already assigned on Presounus firestudio. how can I fix the problem? thanks
    Shing-kwei MaC. Core Dual OS 10.6.8 Max/MSP 5