The IO control only has 1 button really.
The (default) internal configuration is
internal DAC -> Internal Amp
in this config, the external connectors are not connected to anything.
When you push the button once, it switches to external configuration
Internal DAC -> Line out
Line- in -> Internal amp
No internal connections are made in this config.
Pushing the button again switches it back to internal config.
yes, It would be much better if we have a standard case design.
Thank you! Now everything is clear! That's really cool actually.
No, hahaha. That whole post was hypothetical. Dream amp aesthetics, not Project H. Of course, it would be nice for H to look exactly a certain way I'd like it, but borisu isn't my slave and there are practical considerations to take in mind. All I said was, "here are two amps that I think look cool." I mostly just wanted to point out the way the knobs/jacks/switches were laid out on that amp. Besides, I actually kind of liked the black metal RWA over the wood Amphora :) I already mentioned all this earlier to you...but...daijobu! Panda-sama.