LaVoce DF10.10L Driver-Tweeter 8ohm  20 W / 40 W Program, 107 dB, Frequency range: 1500 - 18000 Hz

- 25,4 mm (1 in.) CCA VOICE COIL, WITH KAPTON FORMER - 107 dB SPL 1W/ 1m SENSITIVITY - 40 W PROGRAM POWER HANDLING (20 W AES) - FEM OPTIMIZED MOTOR, PHASEPLUG AND DIAPHRAGM - 1500 - 18000 Hz FREQUENCY RANGE - HIGH TEMPERATURE POLYMERIC DIAPHRAGM - SMOOTH FREQUENCY RESPONSE

http://www.lavocespeakers.com/lavoce/assets/datasheets/LAVOCE_DF10.10L_1in_COMPRESSION%20DRIVER_A.a.pdf