I'm looking at building a new in-line filter for the NX-Otica MTM monitors. MY power amps have an input impedance of 100k Ohms. Using the calculator it looks like I have a couple options for cap size, .01 and .022.
With a .01 the -3dB point is 160Hz, -9dB is at 80Hz, and -14dB is 40Hz.
With .022 -3 is at 72Hz, -9 is at 36Hz, and -14 is at 18Hz.
I understand the progression is not linear between octaves so I'm not sure where the -6dB crossover point would be.
From the standpoint of removing as much low frequency energy from the NQ drivers the .01 cap would be the best choice. However, is that what I should be looking at for best overall performance? Also, the caps would be different. I can only get a .01 in a Sonicap Platinum and a .022 in Myflex KPCU.
Mike