Peavey XR600 output and parts Question

[Jam]

I have Peavey XR600 and it has one bad output transistor do you need to replace all 8 of them or just the one bad one? The part says M Sj6357 7852 were do I get the part?

[Jazz P Bass]

A valid replacement is the MJ15003.

If they test o/k you may let them in.

If you want to get picky, the other ones probably took some kind of a hit.

[audiopete]

mouser - MJ15003G ON Semiconductor | Mouser

At $5 each I would replace all 8.