I'll take #4.

When using a receiver which does it's own crossover processing, like the 1019 does, you should disable, or set the crossover in the sub's amp to its max. Since yours has a bypass switch, I'd use that (and set it to max).

The phase is more difficult. Unfortunately the right answer is, "what ever works best in your room", but again since you're using a Pioneer with phase alignment, the best may be to just set it to 0°, and let the receiver's MCACC do the adjustment.


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