Bass Speaker Enclosures BSE-410HLF Component 1: Size 4x10" Voice Coil 2" Magnet Weight 30 oz. Component 2: Size horn/driver Voice Coil 1" Magnet Weight 8 oz. Component 3: Size Voice Coil Magnet Weight RMS Handling 400 Program Handling 800 Frequency Response (-3dB) 50-18kHz Usable Low Frequency (-10dB) 40 Hz Nominal Impedance 4 Ohms Sensitivity 99 dB Maximum SPL 125 dB Crossover Frequency 4 kHz Dimensions (H x W x D inches) 25-3/4 X 22-3/4 X 17-1/2 Weight (pounds) 91 LBS. Bass Speaker Enclosures BSE-410H Component 1: Size 4x10" Voice Coil 1" Magnet Weight 22 oz. Component 2: Size horn/driver Voice Coil 1" Magnet Weight 8 oz. Component 3: Size Voice Coil Magnet Weight RMS Handling 200 Program Handling 400 Frequency Response (-3dB) 55-18kz Usable Low Frequency (-10dB) 40 Hz Nominal Impedance 8 Ohms Sensitivity 95 dB Maximum SPL 118 dB Crossover Frequency 4 kHz Dimensions (H x W x D inches) 22-3/4 X 22-3/4 X 17-1/2 Weight (pounds) 75 LBS. Bass Speaker Enclosures BSE-115 Component 1: Size 1 x15" Voice Coil 2-1/2" Magnet Weight 56 oz. Component 2: Size Voice Coil Magnet Weight Component 3: Size Voice Coil Magnet Weight RMS Handling 200 Program Handling 400 Frequency Response (-3dB) 55-3800 Hz Usable Low Frequency (-10dB) 40 Hz Nominal Impedance 8 Ohms Sensitivity 97 Maximum SPL 119 Crossover Frequency NA Dimensions (H x W x D inches) 22-3/4 X 22-3/4 X 17-1/2 Weight (pounds) 70 LBS.