I purchased a STK-0029 from their website. Their datasheet says it will work for a Pioneer SX-580.
I purchased 6 of them for $ 4.50. None of them worked. UTSource asked if I would be happy for a 50% refund. Why would I? Their Datasheet specifically says it will work for SX-580 even though the ones... MORE
JIm LShakopee Minnesota
all four ic's ordered were defective and it took almost a month to get the parts that were bad anyway.