All the games I've tried have issues with the sound cutting in and out, except Berzerk. Games play fine, and it appears like the emulator is just not playing it in favor of frame rate - or something like that. Happens on both 2600 and 7800 games. I'm using a 4K TV (NTSC), and Atari's cable. The firmware is version 1.0.0. I havent updated it because I don't have a Windows machine handy.
Thoughts?