About: CT Sounds TROPO-18 18" 650W RMS Car Subwoofer

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.

Product Highlights: 

• RMS Power: 650 Watts

• MAX Power: 1300 Watts
• Voice Coil Configuration: Dual 2 Ohm (D2) or Dual 4 Ohm (D4)
• Push Terminal Size: 12 Gauge

Specifications:

• Product Type: Car Subwoofer
• Subwoofer Size: 18"
• Voice Coil Configuration: Dual 2 Ohm (D2) or Dual 4 Ohm (D4)
• 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

Subwoofer Measurements:  

• Cutout diameter: 16.69"
• Overall diameter: 18.33"
• Mounting depth: 8.11"

Box Specifications: 

• Port Area: 40 in2
• Displacement: 0.30ft3

Flat Response Curve (SQ): 

• Sealed: 4 ft3
• Ported: 5.25 ft3 
• Tuning Frequency: 28 Hz 

Boomer Response Curve (SPL): 

• Ported: 6.5 ft3 
• Tuning Frequency: 28 Hz

Notes: 

• 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.