Hi gdjacobs ES1878 chip share same drivers and software as ES1868 Esscfg and Essvol no way to turn off amp in software. I will have closer look at this card today there must be way to turn volumes down I might look at schematic if I can find one or amp pinout, will post it later if any progress been …

Hello I have ESS Audio Drive ISA sound card with ESS1878s chip unknown brand this card is highly integrated with no jumpers at all it is pnp card. I found that if volume levels are set to high I have crackling and poping coming from speakers there is essvol app for dos to change volume levels but …