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TROPO-8 // 400 Watts RMS 8 Inch Car Subwoofer

Base Price: $89.99 Sale Price: $70.19

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$70.19
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Built to bring you the bass you need without breaking the bank you love, the CT Sounds Tropo 8 Inch 400W 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 8 is the perfect match.

The subwoofer features a 2 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 400 Watts RMS, this 8-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 8 Inch Subwoofer fills in the bass missing from your current stereo.

Quick Facts:
RMS Power: 400 Watts
MAX Power: 800 Watts
Voice Coil Configuration: Dual 2 Ohm
Push Terminal Size: 12 Gauge
  • 8 Inch Dual 2 Ohm Coil Configuration
  • RMS Power: 400 Watts
  • MAX Power: 800 Watts
  • 2 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: 45.02 Hz
  • Qms: 3.37
  • Qes: 0.53
  • Qts: 0.46
  • Vas: 6.96 L
  • Cms: 0.138 mm/N
  • Mms: 90.46 gr
  • Sd: 188.69 cm²
  • Re: 4
  • Le: 3.761
  • BI: 13.89 n/a
  • Sensitivity: 84.7 dB
  • Xmax: 9mm (one-way)
Subwoofer Measurements:
Cutout diameter 7.2"
Overall diameter 8.46"
Mounting depth 4.8"
Box Specifications:
Port Area 12 in2
Displacement 0.07 ft3
Flat Response Curve (SQ):
Sealed 0.3 ft3
Ported 0.4 ft3
Tuning Frequency 38 Hz
Boomer Response Curve (SPL):
Sealed  -
Ported 0.7 ft3
Tuning Frequency 42 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 8 Inch 400W 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 8 is the perfect match.

The subwoofer features a 2 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 400 Watts RMS, this 8-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 8 Inch Subwoofer fills in the bass missing from your current stereo.

Quick Facts:
RMS Power: 400 Watts
MAX Power: 800 Watts
Voice Coil Configuration: Dual 4 Ohm
Push Terminal Size: 12 Gauge
  • 8 Inch Dual 4 Ohm Coil Configuration
  • RMS Power: 400 Watts
  • MAX Power: 800 Watts
  • 2 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: 42.61 Hz
  • Qms: 3.47
  • Qes: 0.58
  • Qts: 0.49
  • Vas: 8.18 L
  • Cms: 0.16 mm/N
  • Mms: 86.27 gr
  • Sd: 188.69 cm²
  • Re: 6.4
  • Le: 4.69
  • BI: 15.93 n/a
  • Sensitivity: 84.2 dB
  • Xmax: 9mm (one-way)
Subwoofer Measurements:
Cutout diameter 7.2"
Overall diameter 8.46"
Mounting depth 4.8"
Box Specifications:
Port Area 12 in2
Displacement 0.07 ft3
Flat Response Curve (SQ):
Sealed 0.3 ft3
Ported 0.4 ft3
Tuning Frequency 38 Hz
Boomer Response Curve (SPL):
Sealed  -
Ported 0.7 ft3
Tuning Frequency 42 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

Based on 52 reviews
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(49)
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N
N.P.
Small space design

Build specs: .6 cuft w/passive radiator tuned to 30hz at 450w rms. Xover @ 80hz
No bass boost.

Details: This build is for a Miata. Which is tricky to make decent low bass in. Being the trunk not fully coupled to the cabin. And there's not much space.
Polk dbs on a Rockford amp in the doors handle the punchy bass around 80hz really well. But generating good output below that, is where this sub came in.

The design is targeting SQ over SPL. Modeling small sealed boxes, peaked to high with the woofer. Ported was really the way to go. However, port length became an issue. Which is how I ended up with the PR. The PR in use here is the Earthquake SLAPS 8 tunable PR. With an additional 160 grams of mass added. And a half pound of poly in the box.

Design: carpeted, "bass tube" inspired design. With white trim around the baffles to match the vehicle. Baffles wider at the bottom for additional stability. Bottom mounted terminal for a clean look, with a groove for the wire to sit in.

Results: Overall output is more than reasonable. Plenty of bass to be had. Kick drums punch hard, and hit high in the chest. Synth bass is well controlled and can get down below the seat, as if it's coming from the floor. Output at tuning is acceptable, followed by a very sharp drop off. But there is a strong cabin gain in the upper 40's. Despite not using the amps bass boost.

The sub handles the amp well. With very little breakup up, only when pushed.

For the price, with the end result I've experienced in this particular build. The tropo is tough to beat.

J
Jose Perez
Small but mighty Tropo 8”

This was the first set of 8” subwoofers I purchase, I have always ran 10,12 and 15s, and let me tell you these little suckers thump!! You will not be disappointed, Im running these under the rear seat of my 2015 Silverado and pushing them with a Kicker cxa 1200.1 and they take it all! Nice low bass with no distortion, super impressed

E
Ethan Beadles

Big output in little air space!

C
Cornell
CT Sounds never disappoints

After giving my Tropo 10 to my little sister I decided to try 2 of these and man...these little things get low

E
Eduardo Cabrera
good

nive i like so much