http://www.borbelyaudio.com/kit_upgrades_term.asp

Is this total hooey, or what? I thought at audio frequencies these
effects are very small, and completely imperceptible. The longest mic
cable I ever use is 100 ft. But no mic will happily drive 150 ohms.
For line levels, the lower Z that any output stage must drive with
this approach definitely has distortion and voltage swing drawbacks,
versus the 10k input Z of a bridging input. What do y'all think?

Dufus