If the receiver is doing it's job properly, then you want the sub to get its crossover out of the way, so they don't interact. That means setting it as high as possible.

Smooth integration is more about when you don't have a crossover in the receiver and you're sending full range to the speaker and sub. The speakers will start to roll off at some point. The idea is to get the sub to start picking up at that point.

With a crossover in the receiver, it does the work. If the lowpass filter in the sub is set too near the point of the receiver there can be interaction between the two.

So with a modern receiver set it high. I don't know why Axiom documentation says different.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris