Richard DudleyHere's the evolution of Kubelik based on my investigations into why Kubelik lost out in dynamics in comparison with Deca DAC.
The filter now uses two inductors per channel, beyond the filter there's now passive I/V with a unity gain buffer following. The bias to the output stage can be rich enough to drive high impedance headphones (150ohm and up) directly by virtue of beefed-up output transistors (SOT-89). So a neat solution for a DAC-amp. This can be purchased in built-up form, no kits as the caps in the filter need to be hand-selected.
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