Massive 180 oz. Double Stacked Strontium Magnets | Power Handling: 1000 watts R.M.S. | Frequency Response: 20Hz – 700Hz | Efficiency: 94.8 dB | Bolt-Tight Motor Structure | 3 Inch 4-Layer ASV Voice Coil | Dual 2 Ohm | 1 Ohm or 4 Ohm Operation

360 oz of Precision Engineered Multi-stacked Magnets | Power Handling: 2000watts R.M.S. | Frequency Response: 18Hz – 500Hz | Efficiency: 89dB | Bolt Tight Motor Structure | 3 Inch 4-Layer AVS Voice Coil | Dual 1 Ohm Voice Coils | 1/2 Ohm or 2 Ohm Operation

250 oz Double Stacked Strontium Magnets | Power Handling: 3000 watts R.M.S. | Frequency Response: 18Hz – 500Hz | Efficiency: 87.3dB | Bolt Tight Motor Structure | 4 Inch 4-Layer AVS Voice Coil | Dual 2 Ohm Voice Coils | 1 Ohm or 4 Ohm Operation