Tannoy QCI 8DC, Ceiling Speaker, Power: 80 W, 320 W (Peak), Maximum SPL (sound pressure level): 112 dB, Frequency response: 25 - 20,000 Hz (-10dB), 35 - 20,000 Hz (+3dB), Impedance: 8 ohm, Sensitivity: 87 dB, Dimensions (W x D x H): 290 x 290 x 114...
