RMS Power: 650 Watts RMS; Max Power: 1300 Watts MAX; Coil Configuration: Dual 4 Ohm3 Inch - 4 Layer High-Temperature Copper Voice Coil & Double Slug Y30 Grade Optimized Motor; built to bring you the bass you need without breaking the bank you loveFlexible High Foam Surround & 3% Carbon Fiber Reinforced Cone; the car 18 inch subwoofer allows you to peer into the atmospheric pressure CT Sounds subwoofers are capable ofAdvanced Air Cooling System & Signature Chrome Plated Low Carbon Iron Bottom Plate; this compact car subwoofer was engineered to be a harmonious combination of price and performance without a compromise on qualityYou have come to the Troposphere; bass yourself seven miles up in the atmosphere with explosive sound pressure, the CT Sounds Tropo 18 Inch Subwoofer fills in the bass missing from your current stereo
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| TROPO-6.5-D4 | TROPO-10-D4 | TROPO-12-D4 | TROPO-18-D4 |
| RMS Power | 200 Watts | 650 Watts | 650 Watts | 650 Watts |
| MAX Power | 400 Watts | 1300 Watts | 1300 Watts | 1300 Watts |
| Subwoofer Size | 6.5" | 10" | 12" | 18" |
| Coil Configuration | Dual 4 Ohm | Dual 4 Ohm | Dual 4 Ohm | Dual 4 Ohm |
| Voice Coil Size | 1.75" | 2.5" | 2.5" | 3" |
