#1 Power Handling: 450 watts RMS Frequency Response: 29Hz - 1kHz Efficiency: 92.3 dB Single 4 Ohm #2 10" Aluminum Cone 1200W max input power (400W RMS) 4 ohm Voice Coil Sensitivity -- 88 dB/W/m Frequency Response 18 - 2,800 Hz #3 Single 4-ohm Voice Coil Frequency response: 25-2,800 Hz Power range: 40-350 watts RMS Peak power handling: 900 watts Sensitivity: 88 dB #4 Frequency response: 18-2,500 Hz Power range: 80-300 watts RMS Peak power handling: 1100 watts Sensitivity: 88 dB What speaker do you think would be best. There is no speaker cab. I own a machine shop and make stuff for Nissan and TRD. I also write cnc machine programs for a job shop that builds cabs for JBL, Radian, Accugroove, etc. I can have them build any cab i want. Criteria is a 2 x 10 with horns that can handle a GK1001rbII.