I wouldn't stack four power supplies. I'd stack them 2x2.
I don't see much value in the standard inner plate. If I was going that route, I'd seriously contemplate designing the plate myself (or modify the drawing from ModuShop) and sending it off to Send-Cut-Send or similar outfit.
Tom
I don't see much value in the standard inner plate. If I was going that route, I'd seriously contemplate designing the plate myself (or modify the drawing from ModuShop) and sending it off to Send-Cut-Send or similar outfit.
Tom
Got it, thanks for the tips. I finished the Mod-686 drawing and found a way to make it work with the regular bottom panel. Good idea about using another service for making a custom panel though, I can use that for another amp idea that I have.
I'm adding some t-slot bars here and there against panel bending. This amp won't cheap, so it shouldn't feel cheap either. How are those steel 1mm panels that you used for the 4-channel amp feeling compare to the 3mm aluminium versions? The top and bottom panels have folded edges so those are probably pretty sturdy. It looks like back cover falls inside of those folded edges though. Does it bend when pushing in an IEC connector right in the middle?
It looks like you ran some grounding wires from the heat sinks to the back panel. One to the chassis ground of an XLR socket, and the other to the ground point next to the IEC. I'm assuming this is for safety reasons? Because the amp modules are mounted on those heat sinks. I haven't seen it in this way before. Maybe I should do something similar in my build.
I'm adding some t-slot bars here and there against panel bending. This amp won't cheap, so it shouldn't feel cheap either. How are those steel 1mm panels that you used for the 4-channel amp feeling compare to the 3mm aluminium versions? The top and bottom panels have folded edges so those are probably pretty sturdy. It looks like back cover falls inside of those folded edges though. Does it bend when pushing in an IEC connector right in the middle?
It looks like you ran some grounding wires from the heat sinks to the back panel. One to the chassis ground of an XLR socket, and the other to the ground point next to the IEC. I'm assuming this is for safety reasons? Because the amp modules are mounted on those heat sinks. I haven't seen it in this way before. Maybe I should do something similar in my build.
The steel panels are definitely sturdy. I didn't try to stand on the chassis, but I don't recall any flexing of those panels. I also don't recall the rear panel flexing. It's 3 mm thick and at 5U tall there's a lot of aluminum there.
I tied two mounting bolts from the heat sinks to ground just as a precaution. I remember measuring 0 Ω before those jumpers were added, but figured I'd add the jumpers just in case. The chassis should be grounded for electrical safety and also for the best EMC performance.
Tom
I tied two mounting bolts from the heat sinks to ground just as a precaution. I remember measuring 0 Ω before those jumpers were added, but figured I'd add the jumpers just in case. The chassis should be grounded for electrical safety and also for the best EMC performance.
Tom
