70-22rHz 65.221diz 60-24kHz 90-221cHz Voice Cdl Diameter- rich (mm) 0.75 (20.0) 1.0 (25.4) 1.0 (25.4) 1.0 (25.4) 1.0 (25.4) 1.0 (25.4) Fs- Free Air Rescnaritie (Hz) 120 Hz 100 Hz 70 Hz 65 Hz 60 Hz 90 Hz as 0.60 0.80 0.68 0.68 0.68 0.80 Vas - cu. It (liter) 0.03 (0.9) 0.09 (2.5) 0.19 (5.4) 0