Here are some of the features of the Pyramid 6390:
Standard 6 1/2'' Size Fits OEM Locations
Gold Injection Poly Cone
Non- Fatiguing Rubber Suspension
Gold Chrome Basket
Special Chrome-Plated Backplate
High Temperature Aluminum Voice Coil
Polymer Film Midrange
Myler Dome Tweeter
4 Ohm Impedance
25 oz Magnet Structure
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