Suggestions on SQ setup

[shumanaudio]

Hi. I'm looking for suggestions on how to utilize what I have for SQ. What I have.
Pioneer 880PRS headunit
Focal Polyglass 165V2 front stage
PPI art 300.2 currently powering front stage
MTX 502 powering 7510-04 in sledgehammer
US amps USA-50 (from justonemoreamp thanks!)
(2) McIntosh MC423 not in use yet
Focal Access 165A rear (mid only) not currently using
I also have a small ported enclosure in the lower dash for a 7" midbass that i'm not currently using
I'm also currently looking for a Focal 11" Sub, Poly or K2
Any ideas or suggestions would greatly be appreciated.

Thanks

 

[jol50]

I would get the McIntosh running to start with and pick your sub. I think you have most of what you need it is more a matter of tuning it in.