Here are some of the features of the Pyramid 490X:
4'' Transparent Polypropylene Cone
Non-Fatiguing Butyl Rubber Surround
1'' High Temperature Kapton Voice Coil
Transparent Basket And Grill
20 oz Magnet Structure
1/2'' Neodymium Film Dome Tweeter
90 Watts RMS / 180 Watts Peak
Impedance: 4 Ohm
Sensitivity: 88 dB
Frequency Response: 90Hz - 20KHz
Includes Grills, Wires and Mounting Hardware
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