JMlab Chorus 714S Floorstanding Speakers - Technic (Black Ash/Natural Aluminium) - Description: 2-1/2 way shielded bass reflex floor standingSpeakers: 5-1/2" Polyglass woofer, 5-1/2" Polyglass mid-bass, 1" TNC inverted dome tweeterFrequency response (+/- 3dB): 50Hz-28kHzSensitivity (2,8V/1 m): 91dBNominal impedance: 8 OhmsCrossover freq and more Home HiFi Systems