Magfan...Interesting about the impedance plot of the MG1.6.
I did an upgrade to the crossovers in my MG1.6...same design just better parts, like air core inductors. I was surprised to find that the high and low frequency crossover slopes were not only different, but the crossover frequencies were significantly different also. I seem to remember that the LF was electrically rolled off well below where the HF cuts in, and this would result in an impedance increase through the gap. Magnepan does a lot of proprietary tweeking to achieve flat frequency response, and the crossover design is part of it.
This is why I have serious doubts about the wisdom of biamping Maggies using an electronic crossover.
I did an upgrade to the crossovers in my MG1.6...same design just better parts, like air core inductors. I was surprised to find that the high and low frequency crossover slopes were not only different, but the crossover frequencies were significantly different also. I seem to remember that the LF was electrically rolled off well below where the HF cuts in, and this would result in an impedance increase through the gap. Magnepan does a lot of proprietary tweeking to achieve flat frequency response, and the crossover design is part of it.
This is why I have serious doubts about the wisdom of biamping Maggies using an electronic crossover.