the edgar mid will be rectangular as per bruces original plans here:-http://www.volvotreter.de/dl-section.htm

im at the start of my diy journey so its just a case of trying things and seeing what fits

The le5-2 is supposed to top out at 5khz in this horn...so could i cross, 1st order, to a jbl2405 safely (at home listening levels)...i'm set on sticking with first order i think as it sounds more natural and rhythm and timing are important to the sound i am looking for. the le-5's are part of the scheme as the evm15l's get a touch cardboardy crossed too high and compression drivers (with a few ,none obtainable in the uk options,.dont go low enough )

90hz straight hypex horns for mid-bass using the evm15l's are the next recipe i will be trying out, with one of the karlsons and a plate amp as a sub (well down to 40-50hz'ish anyway)

not sure which direction the holy grail is in , buts its fun trying to find it

cheers

gary