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CT Sounds TROPO-6.5-D4 400 Watts Max 6.5 Inch Car Subwoofer Dual 4 Ohm

  • Based on 118 reviews
Condition: New
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Availability: In Stock.
Fulfilled by CTSounds

Arrives Friday, Sep 12
Order within 19 hours and 51 minutes
Available payment plans shown during checkout

Size: 6.5 Inch - Dual 4 Ohm


Features

  • 6.5-inch subwoofer with RMS Power: 200 Watts; Max Power: 400 Watts; Coil Configuration: Dual 4 Ohm Subwoofer
  • 1.75 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 & Spade Terminals

Brand: CT Sounds


Speaker Maximum Output Power: 400 Watts


Connectivity Technology: Wired


Audio Output Mode: Stereo


Mounting Type: Car Mount


Model Name: TROPO 6.5 D4


Speaker Type: Subwoofer


Recommended Uses For Product: Car


Compatible Devices: MP3 Player (Car), Car Audio System


Subwoofer Diameter: 6.5 Inches


Unit Count: 1 Count


Controller Type: Voice control


Surround Sound Channel Configuration: 2.1


Included Components: CT Sounds TROPO-6.5-D4 6.5" Dual 4 Ohm Car Subwoofer


Product Dimensions: 6.93"D x 6.93"W x 4.25"H


Impedance: 4 Ohm


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Voice


Speaker Size: 6.5 Inches


Power Source: Corded Electric


Woofer Diameter: 6.5 Inches


Vehicle Service Type: Car


Audio Driver Type: Dynamic Driver


Audio Driver Size: 6.5 Inches


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Includes MP3 player?: No


Processor Count: 2


UPC: 672713239970


Manufacturer: CT Sounds


Item Weight: 8.71 pounds


Item model number: 4332961304


Is Discontinued By Manufacturer: No


Other display features: Wireless


Date First Available: September 28, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 12

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.

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Top Amazon Reviews


  • Great sound! Need more room for mounting
Size: 6.5 Inch - Dual 2 Ohm
So the hole to put these in has to be 100%exact or it will not mount. The screw holes are only about 1/8 of an inch away from where the clearence of the woofer needs to be. But with that said. I mounted 4 in a box that is front slotted and is 2.6 cubic feet. I know its oversized but she slams harder than my 12 did. Alot tighter bass while not lacking lows at all. I have it being fed 1100 watts RMS at 2 ohms threw an arc audio 1100.1 class D and they have yet to even get hot. They handle above rated power every day. Good buy! Also drove for 1 hr today with them at 80% ish and they did amazing. Update. 2 months after posting my review. I blew one of them. But I was maxing it out on a good song. Still a good buy👍 ... show more
Reviewed in the United States on May 30, 2022 by Zave L

  • Sounds amazing
Size: 6.5 Inch - Dual 4 Ohm
Great quality, super crisp and loud. Installed them in my 17 roadglide.
Reviewed in the United States on December 29, 2024 by Mike C.

  • Big sound in a small package
Size: 6.5 Inch - Dual 4 Ohm
This little monster hits hard. Replaced the factory sub in my Legacy with this one several months ago. Installation was easy using an adapter to the factory wiring connection and rear deck location. I’ve been enjoying Clean, low bass tones from this small, powerful package with no distortion even at high volume. Best money spent. ... show more
Reviewed in the United States on July 16, 2025 by Amazon Customer

  • Know your Path of least Resistance.
Size: 6.5 Inch - Dual 4 Ohm
I ordered a dual 4 ohm . The speaker i got was dual 2ohm . Even tho speaker was stamped 4ohm. I checked with multi meter. So i had to only wire one side. in my home sub. Tho i will say after few months I'm super impressed from the sound from this little bugga. Ill over look this QC problem.
Reviewed in the United States on April 9, 2025 by Amazon Customer Amazon Customer

  • Don't let the size fool you!
Size: 6.5 Inch - Dual 4 Ohm
Been doing car audio for years, wanted a little boom boom in the daily driver and always wanted to try out some 6.5's...so thought I'd try the CT sounds tropo's. Built box my self, specs are .90cuft net, 11sqin port area tuned to 36hz. Got a CT sounds 400 watt Amp as well and the finished product??? THESE LILL THINGS GET BUSY!!! It's not terrorizing the block by anymeans, but God dam impressive for 400 watts and some 6" subs. They nail the lows better than some 10's and 12's I've had in the past, and I've had everything from soundqubed to sundown to DC audio and everything in-between. A lot of builds under my belt, and have to say it's actually a lill more than I wanted LOL. My only advise, is keep the tune a little higher around 38-40hz...because while mine surprisingly gets busy on the lows, it falls on its face in the higher notes which is shocking. ... show more
Reviewed in the United States on May 12, 2023 by CREE CREE

  • Weak Bass
Size: 6.5 Inch - Dual 4 Ohm
Tbh I didn't notice any difference from the old one.
Reviewed in the United States on October 13, 2022 by L_fs8

  • Awesome sub
Size: 6.5 Inch - Dual 4 Ohm
Bought this to replace the Bose sub in an 04 silverado 2500. Sounds great! Does the job. Factory box will need some grinding to fit. Stock amp a bit underpowed for this sub but it's awesome.
Reviewed in the United States on May 2, 2018 by Crystal Hinton

  • Nice quality.
Size: 6.5 Inch - Dual 2 Ohm
Great quality, heavy speaker, a bit too large for our needed application.
Reviewed in the United States on February 16, 2024 by SprinkleCrazy

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