Fixes to Standard Flares. Works Well With 10-12" SpeakersPower(f>6kHz): 60 Watts Impedance: 8 Ohms Response: 1.5-20kHz SPL: 97dB Dimensions: 100Dia x 55mm Weight: 0.80kg. Horn driver with standard fixing points. This is a powerful compression driver that- combined with a suitable flare- will work well with 12" or 15" loudspeakers.