Minimum room size for Wilson Sophia II


I'm looking for help resolving an issue where music can be heard outside my house with doors/windows closed. The the speakers are in front of a sliding glass door (covered w/moving blankets).

One, possibly two ideas to resolve this:
1) Place sound blocking acoustical material in front of the glass w/ dead-space between layers.
2) Move speakers into a smaller room: 11.6' long (140") X 10.5' wide (126").

From your experience, is the second room is too small?

What removable materials could I put against the glass slider that would drastically reduce the sound?

System (106 db):
Wilson Sophia II
McIntosh MC501 500W monoblocks
McIntosh C500 tube preamp
Audio Research DAC7
Fully balanced system w/Transparent Super cables
joelz

Showing 3 responses by primare_cd31

Joelz
I'm currently struggle in getting my room acoustically treated correctly. I've done some researches and would like to share my findings with you.
Firstly, what is the dimension of your existing room? Do you live in a house or a unit? Unless all your walls have high grade acoustic thermally bonded polyester fibre insulation installed between the gyprock and brick. Sound will escape through.
Secondly, how loud do you listen to your music? It isn't a good idea acoustically place your speakers in front of glass doors. Blanket won't help much in taming the bass response down to 20 Hz from the Sophia.
You'll need to cover the expose glass areas with DIY OC 705 panels cover with fabric, wood frame, stand, etc. Get 4 bass traps (able to go down to 40 Hz at a minimum) for 4 room corners. Install at least 2 OC 703 panels at first reflection points and behind listening chair.
If possible, hang a few OC 703 panels or diffusers on ceiling
You can also call in an acoustic engineer to avoid un-necessary/ incorrect placement of acoustic treatments
IMHO, your smaller room is small for the Sophia.
You can use it but you'll need expert measurements, advices on how/ where to apply acoustic treatment
Finally, all of the above will only reduce the sound from escaping outside.
Kana813
Yes they are still on casters as I still need to work on the room acoustic treatments. Speaker placement may need to change once treaments have been applied. Do the S4's sound much better on spike?
Being in a room of 16' x 14.4' x 7.84'. There several acoustic chalenges. I've had an acoustic engineer measured the room and the result wasn't very positive! Basically, i need to tune below 70hz region then from 148hz upward. I'll need to apply room specific tunable Helmholtz Resonators with rear ports, BAD ARC panels and RPG Skyline!
Kana813
I'm currently working with an acoustic engineer to custom a solution. I'll post new pictures and results once completed.
After measuremetns, etc, the acoustic engineer did identify the best seating position and speaker placement for my room without any treatment. One speaker was moved way off a side wall while my listening position was kind of being moved way off the centre of the room width axis. This position won't pass the WAF