TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS
TROPO-18-D4 // 650 Watts RMS 18 Inch Car Subwoofer - CT SOUNDS

TROPO-18 // 650 Watts RMS 18 Inch Car Subwoofer

Regular price 10% OFF Before: $199.99 Sale pricePrice: $179.99
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$179.99
COIL CONFIGURATION
Details

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
Specs
General Specifications:
Product Type: Car Subwoofer
Subwoofer Size: 18"
Voice Coil Configuration: Dual 2 Ohm
RMS Power: 650 Watts
MAX Power: 1300 Watts
Voice Coil Type: 3 Inch - 4 Layer High-Temperature Copper Voice Coil
Magnet Type: Double Stacked Y30 Ferrite Magnet
Bottom Plate Type: Signature Chrome Low Carbon Iron Bottom Plate
Surround Type: Dual White Stitched Competition Mega Foam Surround
Cone Type: Composite Paper with 3% Carbon Fiber Reinforcement
Tinsel Lead Type: Dual Round Weaved Copper Tinsel Leads
Terminal Type: 12 Gauge Push Terminals
Basket Type: Stamped Steel
Spider Material: Poly-Cotton Blend
T/S Parameters:
Qes: 0.883
Qms: 6.178
Qts: 0.773
Fs: 22.3 Hz
Vas: 197.61 L
Mms: 468.05 g
Cms: 0.109 m/N
Re: 1.03 Ω
Bl: 8.744 Tm
Le: 0.693 mH
Sd: 1134.12 cm²
Xmax - Single Way (mm): 13.5 mm
Xmax - Single Way (cm): 1.35 cm
Vd (Sd*Xmax): 1474.36 cm³
SPL: 87.99 dB
Box Specs
Subwoofer Measurements:
Cutout diameter 16.69"
Overall diameter 18.33"
Mounting depth 8.11"
Box Specifications:
Port Area 40 in 2
Displacement 0.30 ft 3
Flat Response Curve (SQ):
Sealed 4 ft 3
Ported 5.25 ft 3
Tuning Frequency 28 Hz
Boomer Response Curve (SPL):
Sealed  -
Ported 6.5 ft 3
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.

Details

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
Specs
General Specifications:
Product Type: Car Subwoofer
Subwoofer Size: 18"
Voice Coil Configuration: Dual 4 Ohm
RMS Power: 650 Watts
MAX Power: 1300 Watts
Voice Coil Type: 3 Inch - 4 Layer High-Temperature Copper Voice Coil
Magnet Type: Double Stacked Y30 Ferrite Magnet
Bottom Plate Type: Signature Chrome Low Carbon Iron Bottom Plate
Surround Type: Dual White Stitched Competition Mega Foam Surround
Cone Type: Composite Paper with 3% Carbon Fiber Reinforcement
Tinsel Lead Type: Dual Round Weaved Copper Tinsel Leads
Terminal Type: 12 Gauge Push Terminals
Basket Type: Stamped Steel
Spider Material: Poly-Cotton Blend
T/S Parameters:
Qes: 0.887
Qms: 5.02
Qts: 0.754
Fs: 23.4 Hz
Vas: 193.53 L
Mms: 433.81 g
Cms: 0.106 m/N
Re: 1.68 Ω
Bl: 10.99 Tm
Le: 0.961 mH
Sd: 1134.12 cm²
Xmax - Single Way (mm): 13.5 mm
Xmax - Single Way (cm): 1.35 cm
Vd (Sd*Xmax): 1474.36 cm³
SPL: 88.51 dB
Box Specs
Subwoofer Measurements:
Cutout diameter 16.69"
Overall diameter 18.33"
Mounting depth 8.11"
Box Specifications:
Port Area 40 in 2
Displacement 0.30 ft 3
Flat Response Curve (SQ):
Sealed 4 ft 3
Ported 5.25 ft 3
Tuning Frequency 28 Hz
Boomer Response Curve (SPL):
Sealed  -
Ported 6.5 ft 3
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.

Wiring Calc.
Subwoofer Quantity     
Voice Coil Impedance  

Customer Reviews

Based on 40 reviews
90%
(36)
8%
(3)
3%
(1)
0%
(0)
0%
(0)
R
Randall W. (Bloomington, IL)
Certified Bump

One would call this a budget subwoofer, but it is definitely a good quality!! I was impressed with the Lows and the durability. The enclosure is 6.5cu tuned to 33hz. I have it on a Rockford Fosgate punch 500 and it sounds great. It’s been 2 months and I’m still satisfied!!!!

G
Gavin f. (Sioux Falls, SD)
Best bang for your buck

These subs do require a but of room to play with but they are worth it, they are indeed very massive. I haven't gotten to hear them yet as I am waiting for me second one to arrive (currently Jan. 12th, ordered 2 days ago but there was a lot of snow so I'm not mad). I built my own box for them and I'm so excited!

D
Dominick

Sounds great! Finally got around to breaking them in and I'm impressed!

T
T.G. (Grand Junction, CO)
happy and mad

subs play very well but i expected high qc with the voice Coil manufacturing. both subs wired in parallel should of given me 1 ohm but instead i got 2.4 ohms. checked all voice coils one sub was 3.36/4 other sub was 3/5 major inbalance with the one sub. @ 2.4 ohms in a 10.6 ft3 box they hit 27-40 hz hard as fuck but they distort easily. measured amps output @ 2 ohm mode its 750 rms. 1400 max. subs will take the amp wide open but only takes 3/4 of of the song the sky is crying by SRV. i always use SRV to find weak links in a system. overall ill run them until i buy 2 more then will find bigger magnets and recone with a VC's that are far more accurate with companies stated specs.

J
Jose C. (Union City, CA)
Awesome service!!!!

Can’t beat the bank for buck