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RE: Matching amps to speaker efficiency

Posted by hahax@verizon.net on October 7, 2020 at 20:34:49:
Almost no drivers are really flat. More complex crossovers are never pure 2nd or 4th order but also include equalization to flatten the response. This can be done if there are enough parts to do both equalization and crossover.

On a pure 1st order crossover there are only enough parts to do both jobs, only the crossover portion. So many designers first equalize the drivers to flat and then apply the simple first order crossover. And you end up with zillions of parts for what began as a simple problem.

If you do a simple 1st order electrical crossover, due to driver problems and interaction you probably don't end up with a 1st order acoustical crossover which is what you want. And you probably end up with crazy stuff at the extremes of the crossover/speaker becaus it doesn't roll off fast enough to go low enough inlevel where a driver really goes crazy. But you do get a simpler load on your amp which probably makes it work more easily.