Upgrading my 1978 Klipschorns old alnico K77?

[soundbound]

I’m considering upgrading my old round alnico magnet K77 tweeters in my 1978 Klipschorns. I replaced their diaphragms around fifteen years ago, but read they roll off around 14k to 16k hertz.

 

I have Bob Crites A/AA oil can caps crossovers in them. They’re around fifteen years old. I don't want to change, or modify the crossovers.

 

Any tweeter suggestions? 

 

Two I’m considering are Bob’s CT120, or Beyma CP25. Any comments about those, or which are better? 

 

 

 

[Budman]

if you get the 120's from bob you will have to remove the top hat and move the cross brace back 3/4" to accept the new tweeter. very simple to do. i think 4 screws and the top comes off. i replaced 8 of them

 

[DizRotus]

Never listened to Beyma CP25s, but have listened to Bob’s CT125 and CT120, Klipsch K76 with Bob’s titanium diaphragm, and all versions of Klipsch/EV K77/T35s.  I use the CT120s in my DIY Super Heresys.  In addition to the sound, I like that the horn mimics the K77/T35 in appearance and installation.

 

IIRC, the CT120, with plastic T35/K77 type horn, tested well at Claude’s @ClaudeJ1 against the same driver using a custom machined metal horn.