Looking for Advice on Focal Speakers

If it were me, I would buy a solid state integrated amp or a tube preamp to pair with the Parasound amp. I would keep the Marantz receiver for home theater.  Might not be true for all of the Focal speakers, but in general you will need more tube watts than is offered in most tube integrated amps to drive Focals properly, due to their impedance curve.  At a minimum, I think you would want the 120 watts of a Rogue Cronus Magnum — but I know Kevin Deal at Upscale Audio sells a LOT of Prima Luna integrated amps paired with Focal speakers, and would strongly argue otherwise. As mentioned above, Prima Luna have HT bypass.  

@dcevans Yea I'll probably stick with the solid state because it'll get used a lot by the girlfriend and it'll drive me nuts thinking of the tube life going down every time she watches bob's burgers, ha. So you think a pre amp might be better than going with an integrated? Just trying to decide which is the better option for me. I'm open to both options.

Depends on what you are looking for and your budget.  If you want HT bypass, get a preamp. If a 3D soundstage is really critical for your listening enjoyment, get a tube preamp. A Prima Luna Evo 200 preamp will give you both but set you back $3400. A Schitt Freya+ tube preamp is very high value at around $900 I think, but doesn’t have HT bypass. Plus you will need to invest in interconnect cable.  If space and/or budget is at a premium or if your wife is pushing for less boxes, get an integrated. I personally like the flexibility of separates in terms of experimentation and tailoring the sound to my liking.  You already have the amp. I have not heard the A23, but know the A21 was designed by John Curl and gets very high marks. Supposedly has a warmer, less resolute but more engaging sound. Should pair nicely with the Focal Aria I think. 

As stated before, I would suggest 2 different systems— Marantz for HT/TV, and then a 2 channel system. Your wife can watch Bob’s Burgers til the cows come home. 

@dcevans But if I get an integrated with HT bypass, when I’m using all of the speakers for a movie or whatever the integrated will still drive the front 2 speakers right? I know when I bypass it will only drive the front 2, but a little clear on what happens when I’m not using bypass.

Also, what do you think about a good integrated like Moon with a built in DAC vs getting something like the Marantz Model 30 and a separate DAC like the Chord Qutest? I’ve been reading that the integrated DACs can be good but never as good as a dedicated. Thanks for all the help.