speakers in cabinet - boundary issues
I need to put front speakers; LCR inside an existing cabinet. This is an "entertainment center" that appears to have had no coherent thinking in it's design with regards to acoustics. Free standing speakers are not a possibility. Space in front of cabinet is walked through.
I have seen something about "boundary" problems, where the edges and actuall walls, floor, and ceilings of the space inside the cabinet that the speakers sit in create resonance problems. If the actual dimensions are needed to answer these questions, then I'll provide them.
What is the best way to overcome bad acoustical performance in this situation? I've seen two ideas about doing this. Both involve acoustical "treatments" inside the cabinet around and behind the speaker.
One involves removing the doors in front of the (bookshelf) speakers and covering the opening with acoustic fabric.
The other involves making the front of the cabinet equivalent to a wall (by cutting a hole in the existing door and building up all around and behind to solidify the mounting) and using in-wall speakers.
Are these the only two options that still involve using the cabinet? Is one superior to the other?
If bookshelf speakers are an option I assume they need to not be rear ported.