tweeter
2.5 khz and up: 3 X BMS 5310 ND
https://www.bmsspeakers.com/index.php-172.html?id=5530nd_overview0
https://audioxpress.com/article/test-bench-the-bms-1-5530nd-high-efficiency-compression-driver
this isn’t the best sounding tweeter on earth. nor even of its type. but it’s good enough and it has he practical benefits BMS is known for such as small size, light weight and easy diaphragm replacement ( same method as with the MID - diaphragm is replaceable without removing driver from the horn ).
again, it is the beginner / fool who thinks using the best drivers is what is going to make a great speaker. NO. you need drivers that are GOOD ENOUGH and then you need the BEST INTEGRATION into overall system.
if you want a slightly more Audiophile tweeter you can use Faital Pro HF106 instead:
i discuss the difference between these two drivers here: BMS 5530ND vs Faital Pro HF106 - Philosophical Analysis
the design uses THREE tweeters per side, in a horizonal multi-cell horn.
in the image above you can see a single driver with a horn of 10 cells. in my design there will be 3 drivers and 3 cells.
this would then be a similar approach to MD1 section of JBL Marquis system
if you look closely on top you can see the MD1
now just imagine that instead of 2 X ST400 supertweeters you have three BMS 5310 tweeters on a custom multi-cell horn.
and instead of 10 khz crossover to a titanium dome you have a 2.5 khz crossover to BMS MID.
( continued )