Coral H-21 as a supertweeter for BD-pipes?

[Brisso57]

Hi,
Today at the recycling centre I chanced upon a single shabby Coral BX1200 cabinet.

(Ah, but what treasures lay within! A sea of alnico.)

Took it home, fired it up ... bingo! Great sound. As far as I can tell, all 6 drivers in this 5 way speaker are OK.

The driver complement was/is:
12" Woofer: Coral 12L-27B 8 ohms
6.5" lower mid: Coral 6M-5 16ohms sealed back
5" upper mid: Coral 5M-6 16 ohms sealed back (directly in parallel with the 6-M5)
3.5" tweeter: Coral 3H-7 16 ohms sealed back
2 x supertweeters: Coral H-21 16ohms (in parallel)

Beneath the front baffle is a grille, which states the nominal "divison of labour" amongst the drivers:
Woofer 25 - 800
lower mid 800-5k
upper mid 1k-7k
tweeter 5k-10k
supertweeters 7k-25k

Now, I have gathered two pairs of Sanyo "FE103A" clones (R-S6879, which have had high recommendations from Adason & others), and have cut the panels to make BD Pipes.

All good so far ...

Now the question. Reading the Planet10 commentary on various tweeters tried with BD Pipes, I'm wondering how these H-21's would go? Probably crossing them at the same point as the BX1200's, i.e. at 7k.

Has anyone had experience "rehoming" H-21's? Comment? (Dave?)

Thanks

Doug

[Brisso57]

Here's the whole shebang ...