Topology is Wien Bridge, freq. span is defined by C16 (C17) and R49+RV6A (R52+RV6B). Highest 1/ 2* PI()*R*C = 15kHz with 6.8 kOhm, and lowest 0.5kHz with 206.8 kOhm.
Q is depends on R123/R122 voltage divider in positive feedback loop, can't say more precise.