Focal Aria 948

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.

Make sure you don’t toe them in very much. Focals like to be pointed at 90 degrees to the rear wall, or with minimal toe-in.

The imaging will improve and hopefully you will hear them as less bright and more bass. However, Focals do tend to soak up current in the bass and are not very tolerant of lesser amps. This is not, IMHO a good thing, just experience.

A non-destructive experiment you might also try is to plug the ports and back them up to the wall as much as you can.  Make sure to only use clean socks, as dirt and body oils can affect the port refraction.  <j/k>  but I do actually suggest trying it.

Josef Anton Hoffman, the 'H' in KLH was an audio engineer with a storied career that included working on the Manhattan Project in WWII, after which he returned to school at Harvard where he earned his PhD. In his career, he worked at KLH, AR, and Advent.

Hofmann's Iron Law
"There are three parameters that cannot all be had at the same time. They are low-bass reproduction, small (enclosure) size, and high (output) sensitivity." Hofmann stated that designers could pick two of these three parameters, but in doing so, it would compromise the third parameter.

The Focal Aria 948, with 92.5 dB sensitivity, gives up almost an octave of bass potential for that sensitivity. if were re-engineered to give up 3dB of sensitivity it could probably reclaim bass down to near 40 Hz. The best you can do is locate it closer to your rear walls to increase the acoustic loading. but that may have other tradeoffs you don't care for regarding soundstage and imaging.