Toscanini is an upgrade to Kubelik. Once I discovered that TDA1387s can be 'overclocked' I wanted to incorporate overclocked chips in a DAC, Toscanini is it. Toscanini runs from a lower power supply voltage - ignore the +20V on the silkscreen, its an error. As a result gives up the ability not to clip during inter-sample overs. It's a little more 'green' (not just because of its PCB colour) in energy consumption.

Here's the first prototype :

Image filtering is 3rd order just as with Kubelik and Dorati but the inductors can be sourced from Mouser in a couple of forms, either SMD or TH.