Focal Aria 948

Your take is right on the focal… no bass. If you don’t like it move along. even the Sopra lacks bass regardless of what the internet says…A lot of people on here listen to soft music. I need bass slam. 

Anyway the only speaker I can speak to on your list is the forte. I thought the bass was weak on those too, There but quiet. Then a long time later I say Erin’s audio corner (link below) measured them and they indeed have a base shelve (down). They will need room gain, placed near a wall to have bass. 
 

https://www.erinsaudiocorner.com/loudspeakers/klipsch_forte_iv/

Current amp is an Antique Sound Lab Hurricane Dt Monoblocks paired with a Conrad Johnson PV2.  

I prefer a little bass slam also.  Still like my old Cerwin Vega D3 for that. Was looking for some upgrade. D3 lack a little midrange.

Did you spend a lot of time positioning them? Performance is very highly dependent on positioning. Typically I start with the official recommendation and work from there. Distance from back and sidewalls, and triangle size are important.

Also, are they broken in. It is best to get a hundred hours on them.

Your electronics are oriented towards musical, natural, and mid range bloom. That is the strength of them. Tube stuff will have detailed nuanced bass that is very natural. Slam is something you get primarily from solid state equipment with a lot of power.

I second the positioning. I'm willing to bet they aren't far enough into the room or too close to the wall for the seating position. It took a lot of trial and error for me positioning my speakers to get even bass response in the room.

I had them hooked to a Pioneer SX 1250.  Still lacked bass.

I will give the proper position thing a little tweaking tonight.

The dealer ran them for about 200 hours before he loaned them to me.