Heat sink info

[Mikerodrig27]

Alright! 😉 👍 he is going to be a happy camper then

 

[rhthatcher]

 

[luvrockin]

by Italian vs china no game...

So you're thinking about an Aleph 2? I didn't see it mentioned but have you seen this:

https://www.diyaudio.com/community/...s-builders-thread.382316/page-34#post-7224638
There is a pretty insigntfull document on the Aleph 2 that would be worth a look.

One consideration with two of the DIY chassis is you may want to come up with a circuit to get the gauge to show the bias. The nice thing about going with UMS style boards is that you can repurpose the heatsinks for other UMS projects. There is an etsy store where the boards and kits are sold.

Yep,and thank you for that

 

[luvrockin]

No. It all depends on idle Iq. Question is then, how much Iq you need. That is a completely different question than your first. 100 watts class A is not the same as 100 watts class A/B wrt dissipation. Unless you run that A/B circuit full throttle all the time.

Class A/B circuits are routinely used on chassises with way too small heatisnks. They may handle peaks well, but not long term use into tough loads. Example: Hegel H160, Krell KAV300iL. They all sound sublime. Until they get warm, at which time heat makes them work way putta spec.

So, 100-130wpc a/b, look at size: you’ll soon see if they can handle A.

How much Iq you need to keep you happy, is the question. If that figure keeps you in the happy range, any chassis will do. But your amp may not sound like intended with lower Iq. Solution: Modushop.

I may end up going that route. Thank you Andy.