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.

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18 Inch Subwoofers

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