Anticipated issues with mixing Active + Passive speakers in Home theatre?

Fellow Agon’ers,

Reaching out for your advice. 

Some years ago I pared down my hifi due to time & space issues and shift into streaming, got myself Dynaudio Excite12 with my Mac using Roon.  (Have a 2Qute + Ultrarendu + STi7)

Now have a slightly bigger place (but still not a lot of time!). My Mac and speakers goes into study. 

Now to the living room. 

I like my music and would like migrate my primary listening to the living room. My wife is serious about her movies. 

So need to architect a system that suits both our needs. Interesting times we live in with the active speaker evolution. 

Would like to have component lean setup for the AV in the living room and would like to assess what’s possible to double up to use it for listening. 

I have the KEF 3005 eggs and a PV1D from the past. 

Living room AV Design:

To design a lean setup. Room is horizontal 4.5m depth x 8m. A third (4.5x2.5) of which will be the AV space.

(Buy) Marantz NR1609 7.1, for 5.1 surround. 

(Use) Ultrarendu + 2Qute ..Hook up to analogue IN on receiver 

(Buy) Dynaudio Xeo 6 for front L/R speakers. These are 2 1/2 way active speakers, 3x50W. 31Hz to 23kHz. ..Hook up to receiver pre-out.  

(Use) KEF eggs passives for Center + Rear L/R  ..hook up to speaker terminal on receiver. Will give 3x50 per channel. 

(Use) PV1D as subwoofer ..hook up to Dynaudio Xeo. 

Questions: 

• How can I address potential phase problems while mixing Actives and passives on the receiver? Any Agon’er see potential problems with this?
• Is there a way I can connect my Townshend Supertweeter to my receiver front L/R directly (x/o at 30kHz)?

Cheers,

Tom