Pair of 4*6" 150W 2-way 4 Ohm coaxial car speakers   Characteristics Frequency range: 70Hz-20KHz Continuous Output Power: 25W Peak Power: 150W Impedance: 4 ohms High density magnet, strong vocal performance Strong bass performance Model: BA-4650 Distortion: less than 1% Magnet specification: 7010 Ferrite Sound film: PEI Voice coil: ASV 1" high temperature voice coil Tweeter: Tweeter a cupola PEI ASV 13mm Magnet: 6 oz Cone: injection cone Distance between the holes on the smaller side: 7.5cm Distance between the holes on the longest side: 12.5cm  Diagonal hole spacing: 14cm