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Built to bring you the bass you need without breaking the bank you love, the CT Sounds Tropo 18 Inch 650W RMS Car Subwoofer allows you to peer into the atmospheric pressure CT Sounds subwoofers are capable of. Whether you want to fill in the lows in your stereo or drive the neighbors up a wall; the CT Sounds Tropo 18 is the perfect match.
The subwoofer features a 3 inch - 4 layer high-temperature copper voice coil, double slug Y30 grade optimized motor, stamped steel basket, flexible high foam surround, dual round weaved copper tinsel leads, and a premium grade spider pack. Boasting a conservative rating of 650 Watts RMS, this 18-inch subwoofer was engineered to be a harmonious combination of price and performance without a compromise on quality.
Looking to show your friends what real bass sounds like? You 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.
Quick Facts: | |
RMS Power: | 650 Watts |
MAX Power: | 1300 Watts |
Voice Coil Configuration: | Dual 4 Ohm |
Push Terminal Size: | 12 Gauge |
- 18 Inch Dual 4 Ohm Coil Configuration
- RMS Power: 650 Watts
- MAX Power: 1300 Watts
- 3 Inch - 4 Layer High-Temperature Copper Voice Coil
- Y30 Graded Double Stacked Ferrite Magnet
- Flexible High Foam Surround
- Composite Paper with 3% Carbon Fiber Reinforcement
- Signature Chrome Plated Low Carbon Iron Bottom Plate
- Advanced Air Cooling System
- Dual Round Weaved Copper Tinsel Leads
- 12 Gauge Push Terminals
- Fs: 23.40 Hz
- Qms: 5.02
- Qes: 0.89
- Qts: 0.75
- Vas: 193.53 L
- Cms: 0.11 mm/N
- Mms: 434 gr
- Sd: 1134 cm²
- Re: 1.68
- Le: 0.96
- BI: 11.00 n/a
- Sensitivity: 88.51 dB
- Xmax: 13mm (one-way)
Box Specifications: | |
Sealed | ft3 |
Ported | ft3 |
Subwoofer Measurements: | |
Cutout diameter | 16.69" |
Overall diameter | 18.33" |
Mounting depth | 8.11" |




































I had 2 tropo 18s walled in my mustang, powered by a wolfram C2400.1D... Boy, them tropos laughed at my amp and took everything i threw at them.... Until i upgraded my amp to the T-2500.1D... Man they hit so much harder then before, that is until i blow 1 of them from the power... I just wish i could have been able to upgrade the 18s. There arent any 18s available to order and that broke my heart... Now ill have to run another brand of subs powered by CT Sounds.
I bought one for my Caprice, liked it so much I bought another. Well built with great power handling. Couldn't be more happy.
I'm super impressed with the design, now I've built my box to specs for ported, my 2014 Ram Crew cab flexes everywhere powering with a taramps bass 1200 2ohm and it's so violent. Anything from 45htz and lower!!
I love the quality build of the speaker. Still breaking it in so haven't turned up lots lots but have had the vehicle shaking so far.