So i have a big blue capcom arcade cabinet with a very strange sound issue, so this is a stock condition cabinet and im not sure what exactly is wrong with the sound i have tried to change the speakers, the audio cables i have also tried to change the games both A and B boards. I even changed the capcom sound amps. Nothing has fixed the issue. I get sound but i cant turn up the sound louder then a low normal volume. If i turn it up louder then the sound starts to distort. The one thing i did was i unplug the audio cables but left power cable alone and the distorted sound kept on going even though the cables where not hooked up. Im not sure what exactly is going on here im not very experienced with arcade hardware. The only thing that i have not been able to do is trying out a new power supply as i don't want to spend the money on that unless it will fix this issue. I have tried putting each of the parts into my other capcom machine and they work just fine, except for the power supply as the other machine uses a different power box. Any help with this strange sound issue would be great. Thank you