Partially agree with Atmasphere on semiconductor comment.
I've done some work in my SS class AB amplifier, I have the service manual and parts such diodes, transistors, capacitors (i.e. things that are most likely to break) aren't hard to come by at all.
I agree with you thoughts about class-d though, they have a lot of IC's and surface mount devices. Even if you do find the part you need, installing it will be a pain and expensive (if you choose to let a shop do the repair work for you)
I've done some work in my SS class AB amplifier, I have the service manual and parts such diodes, transistors, capacitors (i.e. things that are most likely to break) aren't hard to come by at all.
I agree with you thoughts about class-d though, they have a lot of IC's and surface mount devices. Even if you do find the part you need, installing it will be a pain and expensive (if you choose to let a shop do the repair work for you)