Melbguy, My comments need to be taken in correct context and with allowance for the fact that I have recently been playing with tweeters that have a 120 degree beamwidth at 20kHz. The EMIT's are probably as good as many or even most dome tweeters in terms of dispersion and everything you point out about their develoment is correct but I am pretty sure that they were refined further for the Epsilon and the dispersion was the major criteria. I recall reading this in the Sterephile review about 10 years ago now (how time flies). By adjusting the amount of toe-in you will certainly be able to fine tune them nicely but just don't expect a really huge sweet spot. But as I have said before the EMIT's are fine tweeters and by far and away the best planar tweeter I have ever heard. I have also heard several of the Kappa series and IMO the Rens are more accurate and detailed and because the EMIM and EMIT are of exactly the same design they are able to acheive that rare feat of almost perfect integration from mid to treble which IMO is by far the most important crossover point in any speaker system. In most respects the Infinity multi planar driver approach is better than most of the full range planar designs due to the mentioned beamwidth > frequency issues and also because planar drivers make it possible to implement the near perfect passive crossover - due to their flat and wide resistive impedance. In other words it's almost as though there is no crossover and that's why (when set up correctly) the Ren's + IRS Infinity's sound quite a bit like an electrostatic speaker.
I can understand that the next 2 weeks will be a long time
but all the very best for eternity after that. After all, 'Infinity' is forever.
I can understand that the next 2 weeks will be a long time
but all the very best for eternity after that. After all, 'Infinity' is forever.