16.Passive Boom Box BX-16 BX-16(6.5") Subwoofer: 6.5" Magnet: 8oz Impedance: 4ohm Voice Coil: 0.75" Cone: Foam Edge, Paper Cone Max Power: 200W Sensitivity: 90dB Size(mm): 340x160x220 BX-10(6.5") Subwoofer: Double 6.5" Magnet: 8oz Impedance: 4ohm Voice Coil: 0.75" Cone: Foam Edge, Paper Cone Max Power: 400W Sensitivity: 90dB Size(mm): 600x140x210 BX-124 6.5" Speaker Box Magnet: 10oz Voice Coil: 1" Rubber Edge, Injection Cone Tweeter: 3" Max Power: 200W Frequency Response: 30-18kHz Impedance: 4ohm Sensitivity: 91dB Size: 320x220x210mm BX-6x9 6"x9" Carpeted Boom Box 3-Way Car Speaker with 12oz Magnet 1" Voice Coil 2" Midrange Piezo Tweeter Max Power: 250W Frequency Response: 80-21kHz Impedance: 4ohm Sensitivity: 91dB Size: 310x160x230mm BX-5x5 5" Carpeted Boom Box 3-Way Car Speaker with 8oz Magnet 1" Voice Coil 1.5" Midrange Piezo Tweeter Max Power: 150W Frequency Response: 80-21kHz Impedance: 4ohm Sensitivity: 91dB Size: 210x145x210mm