As far as sub placement and a wall unit goes;
Find the place the sub sounds good in before building a wall unit or shelf to place it in. I found the sub had to be moved out of the corner about 4 feet and along the wall to get good clean base.
I also did the crawl method and found only 2 or 3 spots that worked best in my room. I started out by placing it to match the system and room, but the sound was not very good.
Place the sub first for sound quality and then think about a wall unit is my advice.
Troy
Not sure if that was answering your question or not but from what I have read about sub placement is placement must be based on flexibility with lots of trial and error.
Last edited by winterpeg; 06/11/05 04:24 AM.