We have extensive measurements posted below and they'll be on our website very soon. At the moment all of our demo pairs are out for review (and we only have a few). Once we get them back I'm sure we can figure something out!
Thanks Keith!
Mesanovic is my last name. The full company name is Mesanovic Microphones, but since we've added monitors to our offerings I think just "Mesanovic" would be more fitting moving forward
I've been designing and manufacturing ribbon microphones for almost 10 years. Our microphones are 100% completely made in-house. The metal machining of the body/internals, transformer winding, ribboning, testing, everything in-house. We also manufacturer OEM toroidal transformers for several pro audio companies. The RTM10 features an in-house made true ribbon tweeter with our unique toroidal core matching transformer and a very unique corrugation pattern. These two elements help us achieve very low harmonic distortion for a 4 micron thick true aluminum ribbon tweeter. It's also imporant to note that a 4 micron thick ribbon sounds very different from the common 9-15 micron thick ribbons found in some of the mass produced ribbons from large transducer manufacturers. I'll also note that each pair of RTM10's is matched. The factory tolerances for all the drivers is very tight, but even then we take time to match each pair in our chamber and keep all records in case of driver failures/replacement issues so we can ensure a perfectly matched pair in case of repair.
Attached below are directivity charts, distortion, group delay, and the spinorama. All these measurements were conducted in our anechoic chamber (anecohic down to 200Hz) and merged with ground plane measurements.
You'll notice the narrowing vertical directivity at high frequencies which is common with ribbon tweeters. Being that the RTM10 is targeted at mixing/mastering studios for nearfield/midfield positioning, the narrow directivity is quite beneficial in removing reflections that are very common from mixing console/control surfaces and overhead "clouds" or the ceiling in general. For home hifi use this is also beneficial and since most listening is done in midfield/farfield at home this effect becomes drastically less noticeable at those distances (sitting vs standing).
I also threw in a picture of our anechoic chamber. It took quite some time to design and build. It's always great giving tours and having people experience zero reflections for their first time!
-Deni
View attachment 90204
View attachment 90205
View attachment 90206
View attachment 90207
View attachment 90208
View attachment 90209