Beryllium Tweets

In a recent speaker project, I went from a Seas Excel softdome ($322) to a Seas Excel Berillyum ($770). The change was night and day. The Beryllium was much cleaner and much more realistic with a higher resolution. No harshness at all!



hummm now ya got me reconsidering,,,after having read a  bit of~~~insider opinion~upon mentioning my great appreciation for the SEAS Thor, especially the Legendary Millenium,,,said the rep, he perfers the Millennium vs the Beryllium. 
back when my set up had the Jadis Orch Refer with EIKT90 ~~although they voiced a  harshness in upper range, their voicing in human vocals was outsanding **soundstage**. Employed Amperex Bugle Boys in the 3 pre slots,,as i was unaware of Telefunken's superior range at that time in my audiophile journey. Shoulda kept the JOR and moded it out with all new caps, new power 6550's (Svetlana vs Shugaung??) and employed the Telefunken,,I'd be alot further ahead and  more cash in my back acct.
searched all over YT for the Beryllium tweet experience, nothing, much, just a few low level muisc vids which made it impossible to determine the voicing of the Be.
So just maybe , after I pay for my mod today of swapping out the new carbon Film resistors for Takman metal resistors (which jadis had employed originally in the Defy),,,just might give the Beryllium tweets a  try, ,,there is a pair offered on ebay for $220,,from china,,so can not return. It is hard for me to imagine any tweet which can voice as the Millenium under optimum  components. 
For me the Millennium is the benchmark for all tweeters. 
But for $220, i'm willing to take the chance. 
Can not afford to experiment with the Seas Beryllium,,as it is wayyy out my budget. 
After I pick up my Defy today,,I will upload a  new YT vid with another cam which has a  external mic,,as the Sony only offers builtin mic and offers poor sound resolution.
Will post a  YT vid here, tonight,,,My hunch is the Takman metal (plate)resistors are superior to the carbon film.
Jadis employed Takman in the design for a  good reason. 

one of those people. Most ( say 90%+) of the Beryllium drivers I have heard can get bright and unpleasant to my ears

Thats what i am guessing will be my response after a  seassion with the Be midtweet.
Metal has that fault at  the highest fq;s. 
Whereas the Millennium has some special fabric, can't recall the name, which avoids these high fq's voicing with a  ~~tinnness~. And my guess is the Be will havea  bit of ~~Bark~~ in certain fq's when they peak high. 
The Millennijm has no such faults. 
There is no such ~~perfect midtweeter~~ But all in all the Millennium meets certain criterion that i wish to hear  in a  midtweet. 
With every mod in my system,,the Millennium continues to shine its true inner virtues of purity and clarity. 

Lower distortion are faster transient response, are just 2 areas where they excel

~~EXCEL~~~ you are actually describing the superior qualities of the SEAS ~~EXCEL~~Millennium~~ fast, neutral, transparent, voices human vocals with high fidelity,,where i might give the Be higher scores vs the Millennium is perhaps in the lower mid 1K-2K fq's. 
I left a  comment on that YT vid you offered  in the link,~~~JUST last night.
The guy is  talking,,,but not delivering the goods, = no actual audiotion is offered. 
Whereas you can hear the Millennium singing its magic in my uploads. 
https://www.youtube.com/watch?v=M1w_o7sZzJI