To high pass or not?

[rccarguy2]

Currently I'm running my Kef Reference model 2.2 with audiolab 8000q, and two 8000px poweramps. Vertically biamped (one px drives left speakers, the other px drives right speaker)

Being hifi, signal is full range to speakers. Full range to sub..subwoofer is svs SB ultra 13..crossover is set to 40hz

I have a outlaw icbm-1, and the subwoofer itself has high pass functionality also. All I would need to do is connect the icbm-1 in-between the 8000q and 8000px, and connect svs into the icbm-1

Benefits of high passing is I would be passing x>Hz to the speakers and X<Hz to sub, able to select
crossover and adjust sub adjustment level on the racking , From 40,60,80,100,120hz and bypass

I would think the outlaw is better quality in analogue section for high pass than the svs.

This is a hifi not av system

 

[rccarguy2]

Just spent couple of minutes wiring up easily enough now have front panel speaker and subwoofer adjustment for crossover. Using 60hz

Disabled low pass in the svs of course

 

[rccarguy2]

Back of outlaw. Tested "left channel" and "right channel" speech tone due to RCA colours heh

 

[rccarguy2]

To calibrate level use this app
Reduce sub to minimum
Output white noise to left speaker, switch right amp off. Note what dB this is
Switch left amp off
Output brown noise to sub
Increase sub volume until it reaches the same noted down number
Correct?