power transistors

Have a couple realistic sta-2100d’s I am working on! Need to replace the power transistors in the right amp! Calls for hitachi 2sb665a’s for the pnp’s! Already replaced with nte285’s! When I checked they were 160volt, 16 amp. My question is, will it be fine to use ones with higher values like...

Hi everybody, yesterday, while my sa 7800 was playing some music, the protection went off and I saw a little smoke coming out... Upon inspection, the two power transistors of the right channel resulted shorted, three resistors seem a bit scorched and the driver transistors are dead as well...