coinmaster
1000+ Head-Fier
Grats baron, hope you learned a few things from your experience.
You should check out the MK6 schematic if you want to learn more about it, troubleshooting is hard when you don't know what does what.
The schematic doesn't seem to be on the first page though, it's probably lost in the depths of these pages somewhere. Just P.M. me if you want it.
I recently blew up both my dac and my laptop when a loose ground clip on my usb oscilloscope touched my 275v supply, so Instead of shipping it to china for repairs I'm going to do the same thing I did when I originally broke my MK6 and reverse engineer it and learn from it. After I'm done with that I'll just order a new USB and DAC module which I suspect are problem, however this means once again I'm without music for a while
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My amp project is almost done though, I've completed the input stage and it performs beautifully, at least on the scope, I haven't heard it yet sadly although because of what it is it should make the MK6 input stage sound like garbage in comparison.
My higher end scope revealed a dead silent background and revealed only a very small 100Mhz+ oscillation which is good and possibly only due to the fact that the whole thing is exposed, last time I listened to a DIY amp in here I could hear radio broadcasts though it.
It passes the square wave test perfectly and the amplified waveforms look beautiful which is no surprise because the distortion should be stupidly low.
The output stage is not fully built yet but the one I've concocted simulates at 0.000016% with 30v p-p into 8 ohms (yes really) which is many orders of magnitude better then any other design I've ever simulated. Even if the real life results were 100 times worse (which will never happen) it would still be 0.016%..
I called BS at first but the simulations are accurate as long the the component models are good and the parasitics are realistic. No matter what component models I use, what voltages I use, or what reasonable parasitics I add or even if I use mismatched components the results are pretty much the same, which means the topology itself is solid and the real life results should be close.
I'm pretty excited to try this one out in real life and overall I'm pretty proud of the overall amp design right now. Can't wait to get some actual listening in.
I've got about a half dozen other interesting and/or unique amp designs I am going to build as well, using either designs of my own or alterations and improvements on other known designs.
You should check out the MK6 schematic if you want to learn more about it, troubleshooting is hard when you don't know what does what.
The schematic doesn't seem to be on the first page though, it's probably lost in the depths of these pages somewhere. Just P.M. me if you want it.
I recently blew up both my dac and my laptop when a loose ground clip on my usb oscilloscope touched my 275v supply, so Instead of shipping it to china for repairs I'm going to do the same thing I did when I originally broke my MK6 and reverse engineer it and learn from it. After I'm done with that I'll just order a new USB and DAC module which I suspect are problem, however this means once again I'm without music for a while
My amp project is almost done though, I've completed the input stage and it performs beautifully, at least on the scope, I haven't heard it yet sadly although because of what it is it should make the MK6 input stage sound like garbage in comparison.
My higher end scope revealed a dead silent background and revealed only a very small 100Mhz+ oscillation which is good and possibly only due to the fact that the whole thing is exposed, last time I listened to a DIY amp in here I could hear radio broadcasts though it.
It passes the square wave test perfectly and the amplified waveforms look beautiful which is no surprise because the distortion should be stupidly low.
The output stage is not fully built yet but the one I've concocted simulates at 0.000016% with 30v p-p into 8 ohms (yes really) which is many orders of magnitude better then any other design I've ever simulated. Even if the real life results were 100 times worse (which will never happen) it would still be 0.016%..
I called BS at first but the simulations are accurate as long the the component models are good and the parasitics are realistic. No matter what component models I use, what voltages I use, or what reasonable parasitics I add or even if I use mismatched components the results are pretty much the same, which means the topology itself is solid and the real life results should be close.
I'm pretty excited to try this one out in real life and overall I'm pretty proud of the overall amp design right now. Can't wait to get some actual listening in.
I've got about a half dozen other interesting and/or unique amp designs I am going to build as well, using either designs of my own or alterations and improvements on other known designs.
