Genuine Sanken 2SA1295 / 2SC3264 LAPT output power transistors, ONE PAIR.
They have fT 35 MHz / 60 MHz and Ic max 17A!!

Be very careful, today on the market there are so many fake Sanken transistors which could damage your premium Sansui amplifier, so it is very important to get genuine Sanken transistors. I can see some examples over internet... they don't have even hfe rank on the body of transistor!!