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I’m thinking about building some Aleph 5 monoblocks using the kk-pcb boards. (I gather that, since these are clearly labeled as clones, they are all right to use.) My question is really a general one: How can I decide how much heatsink I need? I have read the various threads I could find about this, and I take it that I need to know how much power is going through the output devices. Then, if I understand correctly, I can do something like: R = 30 / POWER, where POWER is the total amount of power being dissipated; R will then be the rating I need on the heatsink. So how can I figure out how much power is being dissipated?

For what it’s worth, I’m also building an Aleph J and have found some cool-looking heatsinks on the web that would make a very cool case…. So the same question arises there.

Sorry if this is a silly question, but I’m much better at building these things than I am at understanding how they work. I’m a philosopher, not an engineer….