I've been wondering the same thing, I would buy one in a second. I actually just ordered a new Famiclone from AliExpress, which based on extensive YouTube research doesn't have the NOAC with fuck-awful sound. I have an HDMI Famiclone with the bad sound, and I'm thinking about trying to swap out the video board section since they usually just use a 5-6 pin ribbon cable. It's an interesting development for sure, I'm fairly certain 'CoolBaby' and or HAMY is manufacturing all of these things and they're being repackaged by Hyperkin, Gamerz Tek for the US market. I'm actually excited for passable HDMI console clones at rock-bottom price points, They're a really comfortable middle ground when I don't feel like using my CRT, as long as the sound is good.