The Bacch4Mac is up and running, sort of, but I need some more advice. First, though, I'd like to make clear the Edgar is a pleasure to work with. He is patient and, of course, very knowledgeable.
I'll keep it and explain the pros and cons for me later, but because I am going to keep it there are some consequent choices to be made. First, I had to swap out my modded Gan1 power dac for an old HK Signature power amp. I could either upgrade the Babyface Pro interface for $1100 to get a coax out that the Gan1 requires. Alternatively, I could sell or repurpose the Gan1 and buy a power amp that supports an xlr input from the Babyface pro. I have in mind Orchard Starcrimson monoblocks. TMR has a used pair for $1500. I like the modded Gan1 very much but am open to an alternative. However, I have no experience with other power amps.
Second, I had to disconnect my sub as the Babyface pro has no sub-out. I really need the sub as the speakers are Spendor SP3/5r2 (newer version of ls3/5a). Edgar said I could route the speakers through the sub using its high-pass filter, but this would be suboptimal because of the crossover: having a digital crossover integrated with the Bacch dsp would be better. The Babyface pro upgrade mentioned above would allow me to integrate the sub with the dsp digital crossover.
Thus, the $1100 Babyface pro upgrade would allow me to keep the Gan1 and better integrate the sub. Is it worth it? Is the sub's high-pass filter sufficient? Maybe I should take this opportunity to try another power amp and put the $1100 toward that end.
Your thoughts would be helpful. Edgar's solution is simple: just upgrade the Babyface pro. End of story. However, I'm not sure. I really could use a dealer to work with and advise me. That's not the role Edgar wants to play, nor should he.
There are other issues the Bacch implementation prompts, such as the streamer, the dac and the webcam. But I'll post about them later. And then there are my initial impressions of sound quality. Like just about everything concerned with the Bacch, the answer is complicated. More later. Thanks.