There aren’t many constant directivity waveguides for 1.4″ compression drivers, but one I had not been aware of until Paul Spencer and SvenR on SNA forums brought it to my attention was the 18sound Xt1464.
After reading up on it I found it online for sale (inc shipping) not too expensive at www.thomann.de. It did take ages to show up though, with very detailed notifications of the first and last 2 days of shipping, and nothing for the 3 weeks inbetween.
I’ve decided to read up on doing the crossover “properly” so also have ordered a copy of “Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms” by Floyd Toole, as I have the speakers in a working state already I can take my time and learn some stuff on the way.
One odd thing with the XT1464 waveguides – despite the claims of super hiogh tech the tolerance on the holes for bolting them to the waveguides seemed a bit off, I ended up having to file them a bit to get them to fit. Other than that they appear very well made and strong plastic though.
Now I’m building up quite a collection of 1.4″ throat entry bolt on waveguides:
Even with a “quick and dirty” adaption of the previous MiniDSP used with the Pyle PH916 they sounded not bad at all, and doing a “from scratch” config, choosing a 600hz crossover point I got them sounding very nice with fairly rudimentary measurements and MiniDSP / Room EQ Wizard autoconfig.