Out of curiosity I was comparing the high pass filters of various EQs. I ran an MOscillator at D1 (36.7 hz) around -9.7 db and compared a HP 36 at 60 hz of MBandpass and UAD Oxford Sonnox EQ (https://www.uaudio.com/uad-plugins/equa ... rd-eq.html).
The output is pretty much identical. Adding a phase inverted signal of one completely cancels out the other. Well there is a tiny -70db but it is as good as gone.
Comparing with other EQs I have, it is vastly different. Maybe great minds think alike
