Glad to see someone live close. I live in Mukilteo.
I’m not an expert or anything and mostly here to get some help. But here’s what I think based on my experience.
I used to hang my front speakers up on walls (6 or 7’ high) in the past but felt something was not right. I know many factors come in play. But even if the speakers were angled toward LP, It was weird hearing most sound effects coming from above when most of them should have been from directly front. If you care for realistic sound reproduction, I would place the front speakers on the floor. You can set up FL as close as possible to the built in bookshelf/cabinet. I rather take some sound reflections from the cabinet than all sound coming from over my head. You might have to scarifies some cabinet space. Once you set up the FL speaker this way, you won’t be able to open a couple of cabinet doors.
I used to own Ascent 340 SE. They are exceptionally good for movies. Very realistic sound. However you room is huge open to right side. My room was only 14’ by 13’. I would recommend Klipsch and floor standing speakers. Even if the Ascend can be played very loud without any distortion, I think it cannot beat Klipsch as far as dynamics goes and cannot beat floor standers for sound stage. My buddy has Klipsch floor standers and they are great for movies. Since your system is for 90% movie/TV and 10% music, Klipsch should work better. And you can find them used relatively easily from craigslist. Center speaker is a must for movie/TV, in my opinion.
Surround speakers greatly enhance your movie experience. Don’t skip it. Get a pair of $50 bookshelf from craigslist (preferably from same brand as front), and place them preferably on your side. Judging from your picture, SL can be placed a few feet behind the light stand. And SR can be rear, if side placement is not possible, but as far right corner as possible.
- LG 70UH6350, Onkyo 646, Energy RC-70, RC-LCR, RC-10 & V-mini (FH), 2 x DIY Subs (Micro Marty), Fire TV, HTPC, Outdoor Antenna
- Panny 65PS64 Plasma, Pioneer VSX-1018, Energy Micro 5.0, Outlaw LFM-EX, Xbox One/360, WiiU, PS2
- Onkyo TX-8255, Infinity Primus P163