Electrovoice 12trxb In A Transmissioin Line.
	I discovered the 12trxb about two years ago, and have wanted to make a pair of cabinets for them ever since.  This is my first attempt in a transmission line cabinet with a Karlson coupler exponential slot.  I am in the process of lengthening the pipe to get greater bass extention.  I will update when this is accomplished.  Please note that all measurements are in inches, a photo of the assembled cabinet is at the bottom of this page, I have a few alterations to make, and I have to decide on the finish.  I thought it best to listen to them for a while before completing the project.
			A few notes:  I had to support the inside piece that speparated the two chambers to make the fold in the pipe.  The plans did not call for this, but this seemed the best way to do it without scewing it in place from the outside.  The wires are exiting the cabinet through a very small hole in one of the back sides, and just above this hole is where the potentiometer is located for the tweeter adjustment.