I have a pair of Avi Audio ADM9T active speakers… one of them recently started buzzing as soon as it gets power. I strongly suspect the PNP output transistor is the cause, but I can't find any US-based distributors who still sell these transistors (Sanken has them marked obsolete). Does anyone know where I can get ahold of them besides eBay/AliExpress (not sure I'm ready to trust them for potentially used ICs). Ideally, I'd like to buy two or three pairs of STD03P/N transistors.
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