JLM99V opamp is like a Neve Class A Preamp on major Steroids. It is a pure path device with the signal path only travelling through three transistor junctions. It has gain limited to about 60dB with no feedback applied. When setup right the THD with feedback is 0.005% at normal operating levels heading up to 0.5% 2nd Harmonic as its output swing reaches closer to the power rails. It has a 1v DC offset on the output due to the -input of the opamp being an emitter input. Run well on +/-24v to +/-34v.