The goal of this thread is to share my completed dual 18" 2245H project with pictures.
This project started in early January 2009 and was completed in August of 2009. I did not count how many man weeks it took to complete this project, but there were ten people involved and I would like to thank them formally now
The goals for this project were to improve the appearance of the existing 2245H installation while adding another, drastically improve the acoustics of the room, improve the appearance of the room, and increase the stage area by ~50%.
I have information on the fire rated wall carpet. Please post on this thread if you are interested.
The next project is to replace the satellite speakers shown here with a pair of 4435 clones I already have parts for. BTW these are Peavey PR12's that are now bi-amped with the Peavey version of the JBL 2206H woofers and JBL 2426H mid/high horn drivers.
Given:
-Both subwoofers are the JBL 2245H.
-Both subwoofer cabinets are 12 cubic feet and tuned to 20Hz.
-The cabinets were designed using WinISD beta (thanks Rob!).
-The ~9db boost at 20Hz was accomplished using a parametric EQ.
-The original room was ~3,000 sq. ft. with acoustic tile ceiling, office carpet floor, 12' 5/8" drywall on with all perpendicular wall angles.
-The finished room is ~3,000 sq. ft. with acoustic tile ceiling, office carpet floor, 12' 5/8" drywall covered with 5' horizontal fire rated wall carpet along the sides centered at standing ear level. The wall behind the stage was broken into thirds with the two outer sections being angled at 22.5 degrees. The wall behind the stage was also completely fire rated wall carpeted except for the 10' projection screen.
-The 2245H's were both installed in 3/4" plywood cabinets that were built into the new angled wall sections. I emphasized internal cabinet bracing in this design which really made a noticeable improvement in sound quality.
-This room is the Senior High youth room (The Shore) at my local church. Church is cool with our audio projects because it gives us a way to use our energy in a positive way that many can benefit from (it keeps us off the streets...).