PICaudio Posted February 24, 2015 Report Posted February 24, 2015 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 5
luvdunhill Posted February 24, 2015 Report Posted February 24, 2015 Excellent! A shame the knobs couldn't be symmetrical around the midpoint
JoaMat Posted February 24, 2015 Report Posted February 24, 2015 (edited) Beautiful. Amazing work...and really like the "remote" power switch and volume control. Nice. Edited February 24, 2015 by JoaMat
Pars Posted February 24, 2015 Report Posted February 24, 2015 Wow, that is really nicely done, with great attention to detail!
spritzer Posted February 24, 2015 Report Posted February 24, 2015 I like it a lot. Add on servo's and everything...
Laowei Posted February 24, 2015 Report Posted February 24, 2015 Well thought out with amazing execution. Beautiful work!
Sr Marqués Posted February 24, 2015 Report Posted February 24, 2015 Excellent work, attention to detail, a step further in the DIY world. Congrats!
mwl168 Posted February 24, 2015 Report Posted February 24, 2015 Really great work. Thanks for the internal photos.
headinclouds Posted February 25, 2015 Report Posted February 25, 2015 Yup, a very attractive presentation PICaudio. Good work!
PICaudio Posted February 25, 2015 Report Posted February 25, 2015 Many thanks, I might not build this amp without what I have learned in this place
Pars Posted February 25, 2015 Report Posted February 25, 2015 How is the toggle switch on the back wired? It only affects input selection?
GeorgeP Posted February 25, 2015 Report Posted February 25, 2015 Great work! And where did you find the plastic shaft couplers?
n_maher Posted February 25, 2015 Report Posted February 25, 2015 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.
GeorgeP Posted February 25, 2015 Report Posted February 25, 2015 ... 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.
spritzer Posted February 25, 2015 Report Posted February 25, 2015 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.
Pars Posted February 25, 2015 Report Posted February 25, 2015 Don't you need to ground the - inputs to the board when using the RCAs?
spritzer Posted February 25, 2015 Report Posted February 25, 2015 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.
PICaudio Posted February 25, 2015 Report Posted February 25, 2015 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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