I just bought one of those SRT. Sadly I also have one that have glitchy NES/famicom audio. ACE made a small list of games that have the audio glitch, those are only from the games he tried. Maybe it can help people test for the glitch.
Quote Originally Posted by Ace View Post
The NOAC is hit-or-miss as some Super Retro Trios don't have NOACs that hit false notes (we're not talking reversed duty cycles here, we're talking outright incorrect notes).

So here's the list:

-Contra (very rare, but it can happen)
-The Hunt for Red October
-Snake's Revenge
-Top Gun (may hit random false notes)
-Side Pocket (this game hits false notes almost non-stop)
-Image Fight (randomly spews out false notes after an armored ship is hit)
-Castlevania II
-Vindicators (emits false notes while shooting)
-Galaxy 5000 (random false notes during races)
-Gradius II
-Castlevania III (although the game is unplayable, the sound test is still functional and A LOT of false notes are hit here)
-Akumajou Densetsu (this one is playable and while the VRC6 is inaudible due to the lack of expansion audio mixing, you can clearly tell the 2A03 clone is hitting many incorrect notes)
-Rad Racer II (the game itself has SEVERE graphical errors but is playable, and yes, it hits false notes at times)