Posted by Wayne Parham on December 07, 2001 at 06:10:58

In Reply to: Re: Darn it ! This shoulda worked ! posted by Andy G on December 06, 2001 at 21:18:35:

If you use a resistive voltage divider, the padding resistors act as the load to the amplifier, and they add to the source impedance from the perspective of the load. In the case of the piezo tweeter, the load is primarily capacitive. Because of that, I would use a switched capacitor of 0.1uF to 0.33uF. That would more closely provide the characteristics you are trying to achieve. See the thread called "Pi implementations of quartz piezoelectric tweeters" for more information about crossover networks for piezo's.