TWEETER FOCAL K2 POWER M FRAK - 25W / 150W - 4OHMS - 32MMTweeter 11/4" (32mm)Depth 3/4" (19.5mm)Cone Aluminium/Magnesium, M-profileMaximum power 150WNominal power 25W RMSSensitivity (2.83V/1m) 91dBFrequency response 600Hz - 32kHzImpedance 4 OhmsMagnet NeodymiumVoice-coil diameter 1" (25mm)Suspension TMD