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CT Sounds

CT Sounds TROPO-8-D4 8 Inch Car Subwoofer Dual 4 Ohm, 800 Watts Max

  • Based on 235 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, May 31
Order within 1 hour and 51 minutes
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Size: 8 Inch - Dual 4 Ohm


Features

  • 8-inch car subwoofer with RMS Power: 400 Watts RMS; Max Power: 800 Watts MAX; Coil Configuration: Dual 4 Ohm Subwoofer
  • 2 Inch - 4 Layer High-Temperature Copper Voice Coil & Double Slug Y30 Grade Optimized Motor
  • Flexible High Foam Surround & 3% Carbon Fiber Reinforced Cone
  • Advanced Air Cooling System & Signature Chrome Plated Low Carbon Iron Bottom Plate
  • Dual Round Weaved Copper Tinsel Leads & 12 Gauge Push Terminals

Brand: CT Sounds


Speaker Maximum Output Power: 800 Watts


Connectivity Technology: RCA


Audio Output Mode: Stereo, Surround


Mounting Type: Car Mount


Audio Output Mode: Stereo, Surround


Mounting Type: Car Mount


Enclosure Material: Metal, Carbon Fiber, Foam


Speaker Type: Subwoofer


Additional Features: Bass Boost


Antenna Location: Car


Subwoofer Diameter: 8 Inches


Controller Type: Voice control


Color: black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Voice


Speaker Size: 8 Inches


Woofer Diameter: 8 Inches


MP3 player: No


Specific Uses For Product: car entertainment


Unit Count: 1.0 Count


Item Dimensions D x W x H: 10.2"D x 10.3"W x 8.4"H


Item Weight: 10 Pounds


Compatible Devices: Car


Compatible with Vehicle Type: Car


Power Source: Battery Powered


Brand: CT Sounds


Model Number: TROPO-8-D4


Model Name: Tropo


Built-In Media: Mounting hardware, User manual


Number of Items: 1


Customer Package Type: FFP


UPC: 718117752490


Global Trade Identification Number: 90


Manufacturer: CT Sounds


Speaker Maximum Output Power: 800 Watts


Number of Audio Channels: 2.0


Impedance: 4 Ohms


Connectivity Technology: RCA


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Boom! Bump! Earthquake with 2 of them combined
Size: 8 Inch - Dual 2 Ohm
Fits perfectly with the ct sounds enclosure, I seriously wasn’t expecting so much power, sound and durability from this. Blew my mind. A lot of power in this sub. First time sub guy here. I’d definitely get another one. Or two 2️⃣ I definitely underestimated this sub.
Reviewed in the United States on February 24, 2026 by Christopher W Sharp
    • As advertised
Size: 8 Inch - Dual 4 Ohm
Sounds good in van
Reviewed in the United States on February 7, 2026 by Amazon Customer
    • Sounds great
Size: 8 Inch - Dual 4 Ohm
Review Image by Paliboiz
Review Image by Paliboiz
Very nice. Budget and sounds great
Reviewed in the United States on September 2, 2025 by Paliboiz
    • Amazing product amazing customer service
Size: 8 Inch - Dual 2 Ohm
Review Image by Nick
Review Image by Nick
Review Image by Nick
Do not hesitate to purchase theseto but make sure you give them enough room to breathe. Originally i had them in a small sealed box and they just wouldn’t hit. I bought the skar ported box for under the bench seat in my Silverado and they came alive. I actually had to lower the bass a bit not because they couldn’t handle it, but because they were over powering my interiors. I have them wired at 2 ohms paired with a cheap 1000w pyramid amp. And they hit high and low bass perfectly. The CT sounds customer service is one of the best. Almost immediate answering and they actually care to help. I will be buying the amps from them to power my subs and interiors soon. ... show more
Reviewed in the United States on April 15, 2025 by Nick
    • Best bang for your buck
Size: 8 Inch - Dual 2 Ohm
Review Image by Debbie A. Boswell
Review Image by Debbie A. Boswell
Review Image by Debbie A. Boswell
Very impressive little subwoofer, arrived on time, had no issues and it hits hard.
Reviewed in the United States on October 28, 2025 by Debbie A. Boswell
    • Tropo 8" dual 4
Size: 8 Inch - Dual 4 Ohm
I received two Tropo 8" subwoofers fast and clean. They are worth the price. They have a high fs at 50 hrz which im not real fond of. I have built two different slot ported boxes for them so far. The first is 1.5 cubic feet net with a 40 hrz tuning. The 2nd is 1.5 cubic feet with a 30 hrz tuning. At 40 hrz anything below 40 dropped off quickly. Bass at 30 hrz was non existent. At 30 the bass at 30 hrz was still pretty quiet. Bass box pro shows a huge spike no matter how I modeled these subs and couldn't even get close to a flat response. These sub do offer a real good punch above 40 hrz. The only negative is that who ever assembled the subs were inconsistent. The dust cap and the push termenals were off in alignment. To mount the subs with the logo flat the screw holes were not uniform so that just looks bad. All in all they are at least worth the price asked. Update: I finally ended up with 2 cubs tuned to 28 hrtz and satisfied. Descent bass around 28 to 50 and solid power handling. Still 4 stars for the dust caps not being straight with the mounting holes. The subs just look too good for this minor cosmetic mistake. ... show more
Reviewed in the United States on April 18, 2017 by Jeremy
    • Buena
Size: 8 Inch - Dual 2 Ohm
Buena
Reviewed in the United States on January 13, 2026 by frankli romero
    • Amazing!!
Size: 8 Inch - Dual 4 Ohm
Review Image by Tyrone
Amazing little Sub!! I went with the dual 4ohm version. I liked the first one so much I got a second.
Reviewed in the United States on November 1, 2025 by Tyrone

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