TROPO-18 // 650 Watts RMS 18 Inch Car Subwoofer
You Save 20% ($36.00)
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 2 Ohm |
| Push Terminal Size: | 12 Gauge |
- 18 Inch Dual 2 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
- Competition Mega 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: 22.30 Hz
- Qms: 6.18
- Qes: 0.88
- Qts: 0.77
- Vas: 197.61 L
- Cms: 0.11 mm/N
- Mms: 468 gr
- Sd: 1134 cm²
- Re: 1.03
- Le: 0.69
- BI: 8.74 n/a
- Sensitivity: 87.99 dB
- Xmax: 13mm (one-way)
| Subwoofer Measurements: | |
| Cutout diameter | 16.69" |
| Overall diameter | 18.33" |
| Mounting depth | 8.11" |
| Box Specifications: | |
| Port Area | 40 in2 |
| Displacement | 0.30 ft3 |
| Flat Response Curve (SQ): | |
| Sealed | 4 ft3 |
| Ported | 5.25 ft3 |
| Tuning Frequency | 28 Hz |
| Boomer Response Curve (SPL): | |
| Sealed | - |
| Ported | 6.5 ft3 |
| Tuning Frequency | 28 Hz |
*Flat response curve (SQ) is geared towards people looking for responsiveness. This style box is loud on all frequencies, generates little impedance loss, and can utilize an amplifier rated at the same RMS as the subwoofer.
*Boomer response curve (SPL) is geared towards people looking for maximum loudness. This style box will be louder than the flat response curve at some frequencies, has a high impedance rise, and can utilize an amplifier rated at a slightly higher RMS than the subwoofer.
*Enclosure recommendations do not account for subwoofer, bracing, and port displacement.
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
- Competition Mega 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)
| Subwoofer Measurements: | |
| Cutout diameter | 16.69" |
| Overall diameter | 18.33" |
| Mounting depth | 8.11" |
| Box Specifications: | |
| Port Area | 40 in2 |
| Displacement | 0.30 ft3 |
| Flat Response Curve (SQ): | |
| Sealed | 4 ft3 |
| Ported | 5.25 ft3 |
| Tuning Frequency | 28 Hz |
| Boomer Response Curve (SPL): | |
| Sealed | - |
| Ported | 6.5 ft3 |
| Tuning Frequency | 28 Hz |
*Flat response curve (SQ) is geared towards people looking for responsiveness. This style box is loud on all frequencies, generates little impedance loss, and can utilize an amplifier rated at the same RMS as the subwoofer.
*Boomer response curve (SPL) is geared towards people looking for maximum loudness. This style box will be louder than the flat response curve at some frequencies, has a high impedance rise, and can utilize an amplifier rated at a slightly higher RMS than the subwoofer.
*Enclosure recommendations do not account for subwoofer, bracing, and port displacement.
Customer Reviews
Sounds good for the price....but only been playing them a day, due to waiting on a new radio. Hopefully once they get broken in they will prove to be a good decision.
I went sealed for this single one. My thoughts were being an 18 that it will hit low either way, but I listen to many styles of music and wanted something that would sound as good with country as it does with metal and rap. I did not want super boomy bass but have no doubt it would give you that if that’s what you’re looking for. Superior sound over most subs I’ve owned over the past 25 years. I am a CT Sounds customer for life!
Put two of them in a trunk with a custom sealed box for a customer on a soundqubed 1250.1
its a good sub its just i got 2 of them in back of a navigator an I built my own box its 43inchs wide an 41 inchs long an 15 inch tall wit a port thats 6 inch wide an bout 4 inches tall an its 19 inches long it goes inch the box its a blow thru port it seems that they can't handle very much I got a 2000 watt mono sundown amp the cheapest one an its only half way up an sounds like there bottoming out or distorting or sumthan I got them at 1ohm please tell me what the problem could be
Its a nice sub for under 200
