Summary: Type: coaxial speaker; The number of bands: 2; Power: 30 watts (nominal), 60 watts (maximum); Sensitivity: 90 dB; Frequency range: 100 - 20000 Hz; Additional information: Multi-layer copper voice coil provides high power and durability. Tweeter with a soft membrane neodymium magnet. Use ferrofluid increases the power and improves cooling. Imp ...