Using the AC G3Si tweeter

[Cal Weldon]

I won these in a raffle and am interested in starting my design around the tweeter. I know that's wrong but those are the parts I have. I also have a CSS SD15 woofer (separate cabinet) and plate amp so I guess I'm going about this backward but if you were to have these parts and needed a good mid bass or combination of drivers, what would you use and how would you implement them? While money is always an object, it's not to say that it can't be found if the combo is right. I wouldn't mind being able to get around 110 dB from them.

Thanks in advance.

[Cal Weldon]

After posting I realized you have no real starting point to help.

I'm thinking of a really efficient FR, maybe 8" with the tweeter just as a topper and the woofer to fill the bottom. This will be used to replace the existing main system so I wouldn't mind getting it right. Should I be looking at something like Fostex or even better? Is Fostex about right for the AC tweeter? All opinions welcome.

Drivers will be assigned the latest and greatest planet10 treatments. I am planning to active XO

[planet10]

The point of the AC3 is that is goes low. Unfortunately that pits the XO in an uncomfortable spot. So the other way of looking at it is that it could be XOed higher with a less stepp XO than you'd normally have to use. FE207 or FE206 (maybe with whizzers removed) or FF225 with an XO somewhere betwwen 5 and 7k. 207 is easier to get low enuff to reach the SD15

dave

[Ed LaFontaine]

Cal,

Did you get anywhere with this?