Sis AU907 or AU9500?
You mean au-alpha 907 or au9500 sir?
Alpha 907 ako. I have heard the 8500 i wasn't that impressed, i have heard the alpha907 mos limited, bitin bass, bitin power. Iba yung orig alpha 907, sobrang swabe. Mid high low are excellent. It is the best sansui amp that i have ever heard and owned. Kaya si ka ernie 3 binili. Hehe ganyan ka addictive ang alpha 907. I may order another one from nippon very soon.