Audiobahn ACS2050N, 5" (13cm), Koaxial Speaker 80W RMS 160W MAX Impedancy 4 Ohm Frequency response: 50 Hz - 22,5 kHz 17oz. Magnet Efficiency: 94 dB Pocy Carbon Cone EPDM Foam Surround 2-way ASV Voice Coil removeable Tweeter for separate Installation extern 12dB Cross Over