But consider the Gain of op amp at resonance: Less gain is required at higher values of _ρ, putting less of a burden on op amp open loop gain requirements to provide enough margin to meet the closed ...

A good manually adjusted audio gain stage is characterized by: Low noise and low distortion, A 20 kHz bandwidth, A wide gain adjustment range (e.g. 90dB), and Logarithmic (at least pseudo-logarithmic) ...