ScanSpeak D3404/552000 Ellipticor

D3404/552000 Ellipticor - the top tweeter from ScanSpeak. The average retail price in european internet shops is about - €1060/pair. The tweeter has unique feature that the first time in the history there was implemented elliptical voice coil in it. I wonder what else you can think of to win the hearts and wallets of potential buyers? Whether such an engineeing approach is justified - judge for yourself from the measurements.

The THD measurements at distance of 315 mm and voltage levels 1.41 - 8 Volt were carried out with High Pass Filter "on" (2nd order Butterworth type, 800 Hz cutoff, HPF2-800)

The measurements of the best one among four tweeters are published on the page. For comparison, below the measurements of the worst one:

As for the frequency response, for Ellipticor tweeters it is not known in advance what will you get and if the overpayment to the manufacturer for the so-called selection of tweeters in a pair make you happy. In this case - a pure lottery. Here are the frequency responses of all four tweeters from the two pairs, choose yourself a couple..