Wayne Parham Messages: 18791 Registered: January 2001
Illuminati (33rd Degree)
In the seventies, I used a super-tweeter from 5kHz and it was advertised to 40kHz. Great sounding part with sizzle and great clarity too. The super-tweeter was a round horn with an aluminum diaphragm, about 3/4" as I recall. I ran 'em with a second order Butterworth and a 20 ohm resistor in shunt across the tweeter.