Hi Bryston,
For any music to be recorded digitally (on a laptop, Mac or computer) Audio I/O is needed.
Some 2,3,or 4 microphone inputs for dynamic/ condensor, +48 phantom switch, balanced line input.
When the recording is made, listen back to the recording, line out/ headphone output.
Audio i/o with USB connection, Thunderbolt connection to the computer.
Great faders for example by P&G.
Transformers by Lundahl.
A point of view by Denmark B&K is that all that is there in music should be recorded.
Microphone input analogue frequency response up to 100Khz or higher. Same for line output.
Sadly, for mobile recording of the B&K not many portable units are available for the modern way of location recording Apple Macbook with Ableton Live/ Pro Tools.
I love Bryston equipment and their sound.
Bryston could jump to the front of audio recording if they would create such an audio i.o.
Jean