Sega-Naomi

Does anyone know how to get stereo sound off the I/O I tried hooking it up to 2 speakers but the sound is insanely low when I crank it all the way up.

I had the same issue....ended up building an adapter and running the naomi amp stuff in the cab with it to get stereo. I'm sure that's not the solution you're looking for, but it worked. Kinda bypassed the capcom I/O as far as sound goes all together.

Here's the route I use. I got some creative powered PC speakers with subwoofer. I cut the speakers off of the wire then hook the the wires I cut to the speakers in the cab. Pop down to Radio shack and get a stereo cable plug into the NAOMI motherboard direct. Use the volume control on the creative speakers to set to a desirable level and you are good to go :smt020 the Creative speakers should cost you around $59.00-$79.00 max. The sound is great, especially in the cab I have 6in Sony car speakers in. :smt020

The Capcom I/O only has an amplifier for the mono audio through the Jamma harness. The stereo output is put there so the I/O can manage the volume to an external amplifier. :smt045