Actually, I just realized you have the original which is:
Wolfson WM8741 DAC chips, 1 chip per channel;Fully balanced layout with high quality components;Output connectors coupled with dual LUNDAHL LL7401 output transformers
The S1 Reference that was later listed below is the one that shares architecture with Gryphon Calliope. Sorry for mis-reading. In any event, enjoy!
Hi LL21,
The Lumin S1 is using TWO ES9018 per channel whereas Gryphon Calliope is using just one ES9018 per channel.
Although the number & type of dac chip is just one of the many factors that affect sonic performance, I still have high expectation on S1.
Lumin claims that S1 will be available in 2Q 2014.
Cheers,
CK