Axiom Home Page Forums General Discussion Home Theater sub crossover...what gives?

Topr, a correctly operating receiver crossover is supposed to roll off the sub at a rate of 24 dB per octave above the selected crossover frequency; as Craig and sushi pointed out, the response isn't suddenly cut off above 80hz. Another good reason to avoid the use of the crossover control on the sub except as a last resort is that they're generally quite inaccurate, both as to range and marked frequency. The "80hz" setting could easily be off by 20hz.