Now DAC output stage is a "simple" SRPP. It sounds nice, but.... it can be made better. After lots of investigation I decided to go Aikido way. It is really great design and very flexsible. I might try Moskido as well.
I've removed digital PSU out of DAC and mounted new PSU. Now everyhing is nice and clean. No bruuum and background noise. Great!
SLA battery chager (UC3906) prototype works. I plan to built 4 on them on a board and put SLAs in nice separate chassis. I will use RCA conectors (standard and thay have good connections).
Matej
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