February 24, 201511 yr Yes, I like the Bel Canto designs. This is a Hifi2000 Pesante box of 2U and I used the typical heatsinks of 63.5mm high with 5mm PCB spacers. I only made some low quality photos with my phone I mounted the power LED behind the icon
February 24, 201511 yr Beautiful. Amazing work...and really like the "remote" power switch and volume control. Nice. Edited February 24, 201511 yr by JoaMat
February 24, 201511 yr Excellent work, attention to detail, a step further in the DIY world. Congrats!
February 25, 201511 yr Many thanks, I might not build this amp without what I have learned in this place
February 25, 201511 yr How is the toggle switch on the back wired? It only affects input selection? I'm guessing he implemented the same thing that Justin does, which is simply a switch between the XLR and RCA inputs. I can't remember the exact wiring off hand but I did the same thing on my KGSS Headamp clone. And ditto on the question regarding the shaft-couplers. Those things (even the metal ones) are like hen's teeth it seems. Finally, that's a simply superb build, PIC. You should be very proud.
February 25, 201511 yr ... And ditto on the question regarding the shaft-couplers. Those things (even the metal ones) are like hen's teeth it seems. Finally, that's a simply superb build, PIC. You should be very proud. The metal can be found at Mouser if anyone is looking - keystone part# 1453.
February 25, 201511 yr The switch is simply a 4PDT ON-ON unit. Wire the 4 poles from the XLR inputs to one side and the RCA input as plus and minus as ground on the other end. Dead simple.
February 25, 201511 yr You do that at the switch. + - - + XLR x x x x Output from switch + G G + RCA G is tied to common ground Something like this. Flip the switch to RCA and it grounds the - inputs to the amp.
February 25, 201511 yr Yes, I have connected the selector according to Birgir's explanation. I made these shaft couplings (Delrin), and I used steel pipes first but I had some problems because the knobs don't turn uniformly and I saw that the pipes were a bit twisted (or crooked, I'm not sure what the right word to describe this problem ) I decided to change these pipes and made another of aluminium/carbon fiber (I have used an arrow ), these pipes are very fragile and they are easy to broke when I tighten the screws of the shaft couplings, for this reason I reinforced the pipes in the ends.
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