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RE: Current Maggies run full range compared to high pass and subs.

A simple capacitor in front of your amplifier will yield the first-order slope, but that only works correctly if you're using the natural roll-off point of the Magnepan's.
If going up higher, like maybe 80Hz, then it's a different scheme and you'd need to adopt a different approach.

A low frequency first-order filter isn't going to help out too much on bandwidth-limitation relative to a 4th-order electrical filter at 80Hz. If a person is looking to play the main speakers a good bit louder than they're capable of driven full range, then the higher frequency/order crossover is preferred. But, (smaller) Magnepan's are limited in their SPL capability anyways, so you can quickly get to the point of diminishing returns.

Dave.

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