I built an F4 from diyaudio and it changed my life. Just finished the DIY version of the SIT3 and it is beautiful. I've got two monoblocks that each have an F4 and SIT3 in them... roughly $6400 worth of amplifiers that I built for $2000, and the process teaches you about how electronics work. Now I can troubleshoot and fix my own equipment.
Thanks Nelson, it's amazing that you allow people to do this with your intellectual property.
Thanks Nelson, it's amazing that you allow people to do this with your intellectual property.