How to make a 7.1.4 system work in a small room with special needs?

G

Goldhasmter916

Audioholic Intern
Hello!

Disclaimer: this is a long text, feel free to focus only on one or two of the questions.



I am currently building my first ever home theater (7.1.4) with some rather unconventional needs in a small room. I have some ideas but could need some advice from experienced people if they would work out:



My room is 4x3 meters, I care only about one listening spot, with 2m to sides, 2m to front and 1m to back.

I will use a competent ported subwoofer.

I will mainly aim at rather moderate db levels (maybe 70db with effects topping out at 90db)

I will mainly use it for gaming but also some movies.

I will try to build a Auro 3D set up with upmixing from a denon x3800h. (I understand that many aren’t a fan of auro 3D but I Think it might fit my needs and will give it a try).

I only really care about ,,immersion“. So soundstaging, imaging/good panning of effects and detail retrieval matter to me most.



The Problem: the front wall:

I have a thin 77inch A95L Sony oled flat mounted against the fall and sit fairly close to it (2m). I dont want big bulky boxes sticking out from the wall into the room next to the tv. Further more I don’t want to look at a big bulky center speaker directly under the tv (it would somewhat destroy the immersion for me). Because of the close listening distance the center speaker would be way under ear and other speaker level, which would cause many problems for soundstaging. So no dedicated center speaker for me.





Idea 1: using the Sony A95L as a center (in case of understandable objections come in your mind please read on: it has a acoustic surface technology, which means the screen is used as a speaker Membran and emits the sound. I know it sounds gimmicky but it works. all Reviewers and owners agree that this tvs sounds way better than any other high end tv on the market and the sound is actually coming right from the screen. Also keep in mind that I sit close to the 77inch sound producing screen and listen at moderate levels. It has a center in jack and can be used as a center channel with an avr.

That being said I am not sure if I wouldn’t be better of using higher quality FR and FL to create a phantom center:

Since I don’t want regular bulky bookshelf speakers next to the tv I could use center speaker bars like the Polk Es35C, which are much less deep, vertically as FR and FL, which according to audio science review works really well with good dispersion charakteristisch. Picture below. It’s also at 40 percent discount right now on Amazon…

Do you see any problems arising from using such a lengthy speaker bar with six woofers vertically as FL FR in a small room from a close listening distance? Too many reflections maybe? Would they be good for creating a phantom center channel?


Choice of surround speakers:

For surround and height speakers I am less concerned about size:
Right now I am considering either the Polk ES series which come in white, have different size options and got a good review on audio science review Polk Signature Elite ES20 Review (Bookshelf Speaker). They cost only 200 dollar a pair for the ES15 and ES10. Since i sit close and want the 30 degree angle for auro 3d the front height would need to be placed almost directly above the outer tv corners. The ES10 would have the same slim profile of the ES35 FR and FL bar. For all the other channels I am less concerned about size. I could maybe use the es15 for side surround and ES10 for rear and height back.

The other option would be the KEF Q150 which are much bigger and cost almost twice as much as the ES 15/10 speakers. They have a coaxial driver and narrower dispersion then the es line.

I would have most surrounds at ~1.5m listening distance, do you think I should rather go for wider or narrower dispersion for good soundstage and imaging/panning? Would a coaxial driver be beneficial?



I know this is a lot to take in! I really appreciate if you read and think through to all of this!

Thanks for your time and any feedback/thoughts.
 
William Lemmerhirt

William Lemmerhirt

Audioholic Overlord
Can we close this thread? The other one is already active.
 
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