BillFitzmaurice.info

Hi!
Ordered some drivers according to pictures.
Vas is a bit low and fs is a bit high, along with the rule of following tha plans i cant find the other sentence I've read that said something like "low vas and xxxx fs(?) tend to cancel out so it might work", something like that, or i might just be having my hopes high? Could have been other parameters..
Anyways, can I expect something from these drivers?
Right now i have two sica woofers, four deltalite and four of those tweeters.

EDIT: finally found the post; "lower fs and lower qts tend to cancel out" sorry.

Also, since I am missing hf drivers for all six cabs (and still thinking about the lower cab with piezos), could I, for the coupling sake, use six mid-drivers and use four tweeters, either in one cab or in two (couples,top and bottom in two cabs)where i run them at 8 ohms, not using the full potential in how loud they can play but for the coupling of the mid's sake.. Indoors.

You think i can use these tweeters for the 1.2khz option? And i dont mix piezos at 2khz in the lower cabs with the other cabs running 1.2khz x-over?

The drivers look OK. But as for this:

could I, for the coupling sake, use six mid-drivers and use four tweeters, either in one cab or in two

I don't understand what you mean.

Bill Fitzmaurice wrote: ↑Wed Apr 09, 2025 9:26 am The drivers look OK. But as for this:

could I, for the coupling sake, use six mid-drivers and use four tweeters, either in one cab or in two

I don't understand what you mean.

For now, I'm not able to buy more tweeters.

If I build the six dr250, and instead of just using the two complete ones, use all six and place, for example, one hf-driver in the bottom hf-horn of the top box, and one in top hf-horn in the mid box.
I get that it sounds strange.
Thought then was to adjust the filter, running them in 8 ohms per cab of the upper two cabs..

(3 cabs per side, top cab has empty top horn but one in the bottom, second cab, driver in top, empty in the lowest. Cab 3 no horn. Crossover adjusted for 8 ohms)

It sounds stupid now when I write it..

Two boxes would be enough for the room, I simply wanted to use them all six until I find more hf-drivers.

There's no point in running any that have no tweeters.

Bill Fitzmaurice wrote: ↑Wed Apr 09, 2025 4:21 pm There's no point in running any that have no tweeters.

Thank you Bill. I'll simply try to get them then, or "borrow" the hf107 from my otop15.
Guess we can forget Eminence here soon

Oops! I didn't notice, ny phone autocorrects dr250 to dr280.

What about building 2 or 4 of them completely and correctly, then building the remaining ones when your budget permits?