The specs are on the page for the 4u chassis. Shopping on Aliexpress, millimeters will be more handy to you. Look at the heatsink depth and assume 50mm minimum for straight fins as the DIYaudio heatsinks are wavy (puts off a little more heat):
https://diyaudiostore.com/collectio...mplifier-chassis-steel?variant=39313326473289
If you are going the Aliexpress route, this is a fantastic chassis.
https://www.aliexpress.us/item/2255799833268142.html?gatewayAdapt=glo2usa
I think Zen Mod was hinting you try the 5u chassis (bigger) if you can swing it. I agree in that it opens up future amps that you can try. The Aliexpress one that I linked is about the same capacity as far as heatsink. The Aleph likes high bias. With the larger chassis you can try to run the bias as high as 40 watts. I believe the UMS thread has a 30/40 build guide that may outline how to achieve that.
There is another chassis like the Aliexpress one I liked that is the same but not as tall. It is a little cheaper in regards to shipping and the purchase price.
https://diyaudiostore.com/collectio...mplifier-chassis-steel?variant=39313326473289
If you are going the Aliexpress route, this is a fantastic chassis.
https://www.aliexpress.us/item/2255799833268142.html?gatewayAdapt=glo2usa
I think Zen Mod was hinting you try the 5u chassis (bigger) if you can swing it. I agree in that it opens up future amps that you can try. The Aliexpress one that I linked is about the same capacity as far as heatsink. The Aleph likes high bias. With the larger chassis you can try to run the bias as high as 40 watts. I believe the UMS thread has a 30/40 build guide that may outline how to achieve that.
There is another chassis like the Aliexpress one I liked that is the same but not as tall. It is a little cheaper in regards to shipping and the purchase price.
This one has a 311mm depth.
https://m.aliexpress.us/item/225183...lgo_pvid=24cd117c-8b46-4a97-8a0f-7182e371f703
https://m.aliexpress.us/item/225183...lgo_pvid=24cd117c-8b46-4a97-8a0f-7182e371f703
Too short. The heatsinks are 171mm tall x 313mm long by 40mm deep on the 4U. You will want to go a little larger on the Chinese chassis as the heatsinks from the diy store are pretty good. I mean, you can use a smaller chassis and build something like an Aleph mini with those boards if you want.
If you are able to build an enclosure from parts you already own, simply buy the heatsinks by themselves from the DIYaudio store.
Is it the chasis size or the heatsink that I need to increase here?
The real Aleph 30 is smaller in both dimensions.
The real Aleph 30 is smaller in both dimensions.
see Modushop case 4U high 300 deep as example what's just enough
their 4U/400deep is proper
use your Google woodoo
their 4U/400deep is proper
use your Google woodoo
Both the heatsink and the chassis need to be larger than the one in post #63
heatsinks still too short. Need to be larger. You are closing the gap in price between the one I linked and the 4U from the diyaudio. The one I linked would be killer for an Aleph 40.
heatsinks still too short. Need to be larger. You are closing the gap in price between the one I linked and the 4U from the diyaudio. The one I linked would be killer for an Aleph 40.
In fact, Zenmods suggestion of 400mm is a good one. Here is the 4U 400mm lon chassis without holes:
https://diyaudiostore.com/collections/dissipante/products/dissipante-4u?variant=12165082308
Getting pretty cheap. I think they are free shipping. Just look into drilling holes first. Make sure you are ready for that. The reason I used the one I linked is the heatsink fins are far apart. It is easy to drill through holes and not hit the fins especially if you use a heat spreader.
https://diyaudiostore.com/collections/dissipante/products/dissipante-4u?variant=12165082308
Getting pretty cheap. I think they are free shipping. Just look into drilling holes first. Make sure you are ready for that. The reason I used the one I linked is the heatsink fins are far apart. It is easy to drill through holes and not hit the fins especially if you use a heat spreader.
Bottom taps and experience tapping holes in general. Machine oil a good drill bit. The problem is that the holes are likely not going to be through hole and bottom tapping is tough because it's easy to snap a tap tap in the heat sink.
OK. before spending this kind of money on an enclosure that I will just have to further modify, I want to look at all of the options available to me. Building it as cheaply as possible is the key.
What I have in mind is a wood base, the proper heatsinks, half tall front and back plates with a grated metal cover on top that vents the front and back like a tube amp (less heat, longer component life).
Yeah. I can understand. I made one with a mostly wood case. The only thing that's metal are the two heatsinks. That was a pretty cheap amp.
I will post a picture later.
I will post a picture later.