What would a system sound like if you just ran the Silver Flutes midbass and the Pioneer Pro's (up to 18 khz.)? No tweeters.
Over bearingly loud midrange with a likely a muddy upper range I don't believe for a moment those pioneers should be played past 8khz
You could cross the flutes at say 250hz low pass and bandpass the pioneers 250-8k but the pioneers would overpower the silverflutes.
Midbass at extreme volume would take several thousand watts across multiple drivers.
Most builders rather use midrange drivers and let the subs play up to the midranges cross over point.
I just don't care to do that since it draws my sound stage rearward. This is due to the fact that the high frequency you get the better your ears are at detecting the direction the sound is coming from. My subs usually cross in the 50-65hz range
The makes them quieter overall at least to the ear because they aren't playing frequencies that your ear can detect directionally.
Just different play styles. I can still let my subs get loud and they will drown out the midbass like anything else but I'm usually more balanced that that.