Quote:
a1161979 wrote:
 And i have to agree with you Mike for agreeing with Matt 
We need Steve here because i think two sonotube LLTs on each side would provide awesome performance, i understand you want sealed for music but many make the conclusion that sealed is better for music which is untrue  Anyway i think you might be onto something here 
Id measure up the space you have then get back to us with the size of tube you can fit and the max height, also the intended driver and we can then start helping you with the nitty gritty design 
Go get that tape measure... |
OK, I did some measurements. The openings in the columns are 21" w x 19" D. Height? 11.5 feet. I don't think height will be a problem.
The internal space of the column is actually bigger, but optimally the access will be from the side, not the front, so 19" looks like the narrowist measurement.
I'm not averse to considering LLT. It does raise some interesting questions, though. But first, let me supply a little more information and describe what to me would be ideal.
The two walls forming the sides outside and rear of the column is 8" poured concrete. The floor is also 8" poured concrete. I don't think floor resonance will be a factor. The room will be a dark green with a flat black acoustic tile ceiling. There will be 30" high wanscotting around the room. It will be oak in a dark stain.
The ideal situation for me would be for the front of the columns to be permanent. Above the wanscotting it will be drywall painted the room color, with sconces on each column. Below the horizontal oak strip at the top of the wanscotting would be speaker cloth, either black or white cloth dyed to the color of the oak stain.
The sides of the columns would be removable panels 8' high, to the bottom of the soffett. They would be covered in black speaker cloth. The area behind the screen will also be painted black.
Since the width of the access is 19", it looks like a 16" tube would be the best size. I think 18" would be too much of a squeeze. I guess my question about LLT is if it would be OK for the output from the subwoofer radiate in essentially 180 degrees, while the output from the port only radiate to the sides, or 90 degrees, since there will be drywall at the height of the port output. Also, how much space above the port is needed? I was thinking it would be a good idea to cover the bottom of the soffett in the columns.
I was considering Titanics or Dayton reference, but I'm open to any suggestions in the ~$200 or less range.
Suggestions and ideas are appreciated.
Doug