Back from working on my barn. Little barn but still needs to be built!
is there a rule of thumb that relates the limit of compression ratios, excursion, power, etc.? i.e. do you happen to know what aspect of high compression ratios it is that destroys drivers?
It's a black art!
Well short story I try to keep things less then 5:1. If you go with a much greater compression ratio you end up putting enormous stress on the driver.
That said you have to pick a driver with a cone that can take the pressure of a horn in the first place. Musical instrument drivers are usuallu light cones that will not like horn loading. So you are looking for a driver with a decent moving mass and a demonstrably heavy enough cone to take the beats!
The TRIO12 is a great driver in this regard. There are quite a few other drivers that will work. The problem is that the combination of high X-max decent sensitivity and suitability to horn loading are not traits found in a great deal of 12" drivers.
"Have you looked at a TRIO12 inorder to comment on the integrity of the cone?"
i have not.
I take it you have a killer system as is?
If you don't the TRIO12 is a good driver in it's class of 12" drivers. It competes head to head with most and beats a great many of them. I've been modeling it for almost a year. And messing with it for about 8 months. Hard driver to find the equal of it I'd say.