Linux_Tux
2018-10-17 18:19:47
Let’s talk tech. So what’s the big deal about current feedback?
It provides a dramatically faster gain stage with inherent symmetry. When applied to a headphone amplifier, it gives us an amplifier stage that extends far, far beyond the audio range (if not for the input filter, this stage runs out beyond 6MHz), and still provides better measured performance than any amp stage we’ve ever made to date, except for maybe Jotunheim.
low gain 個bandwidth 大過high gain，即係high gain黎講在high frequency的gain drop/改變會比low gain 早
https://www.youtube.com/watch?v=PRDAz69IUjs