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Description
HELIX Ci7 M100FM-S3 + HELIX CFMK100 MB.3 BundleMatched speaker and vehicle specific adapter bundle. Speaker: HELIX Ci7 M100FM S3 (CI21401) Adapter: HELIX CFMK100 MB. 3 (CI41008) Vehicle compatibility Please check your make, model, year, sound system and speaker position before ordering. Mercedes AMG GT X290 02 2018 today Rear (Advanced Sound System) Mercedes AMG GT X290 02 2018 today Rear (Burmester Sound System) Mercedes AMG GT X290 02 2018 today Rear (Standard Sound System with ASD) Mercedes AMG
Matched speaker and vehicle-specific adapter bundle.
- Speaker: HELIX Ci7 M100FM-S3 (CI21401)
- Adapter: HELIX CFMK100 MB.3 (CI41008)
Vehicle compatibility
Please check your make, model, year, sound system and speaker position before ordering.
- Mercedes AMG GT X290 02/2018-today — Rear (Advanced Sound System)
- Mercedes AMG GT X290 02/2018-today — Rear (Burmester Sound System)
- Mercedes AMG GT X290 02/2018-today — Rear (Standard Sound System with ASD)
- Mercedes AMG GT X290 02/2018-today — Rear (Standard Soundsystem)
- Mercedes C-Klasse A205 02/2016-today — Center (Advanced Sound System)
- Mercedes C-Klasse A205 02/2016-today — Center (Burmester Sound System)
- Mercedes C-Klasse A205 02/2016-today — Center (Standard Soundsystem)
- Mercedes C-Klasse C205 02/2014-01/2022 — Center (Advanced Sound System)
- Mercedes C-Klasse C205 02/2014-01/2022 — Center (Burmester Sound System)
- Mercedes C-Klasse C205 02/2014-01/2022 — Center (Standard Soundsystem)
- Mercedes C-Klasse S205 02/2014-01/2022 — Center (Advanced Sound System)
- Mercedes C-Klasse S205 02/2014-01/2022 — Center (Burmester Sound System)
- Mercedes C-Klasse S205 02/2014-01/2022 — Center (Standard Soundsystem)
- Mercedes C-Klasse S206 02/2021-today — Center (Advanced Sound System)
- Mercedes C-Klasse S206 02/2021-today — Center (Burmester Sound System)
- Mercedes C-Klasse S206 02/2021-today — Center (Standard Soundsystem)
- Mercedes C-Klasse W205 02/2014-01/2022 — Center (Advanced Sound System)
- Mercedes C-Klasse W205 02/2014-01/2022 — Center (Burmester Sound System)
- Mercedes C-Klasse W205 02/2014-01/2022 — Center (Standard Soundsystem)
- Mercedes C-Klasse W206 06/2021-today — Center (Advanced Sound System)
- Mercedes C-Klasse W206 06/2021-today — Center (Burmester Sound System)
- Mercedes C-Klasse W206 06/2021-today — Center (Standard Soundsystem)
- Mercedes CLS C257 03/2018-today — Center (Burmester Sound System)
- Mercedes CLS C257 03/2018-today — Center (Standard Soundsystem)
- Mercedes E-Klasse Cabrio A238 02/2017-06/2020 — Center (Burmester Sound System)
- Mercedes E-Klasse Cabrio A238 02/2017-06/2020 — Center (Standard Soundsystem)
- Mercedes E-Klasse Coupe C238 12/2016-06/2020 — Center (Burmester Sound System)
- Mercedes E-Klasse Coupe C238 12/2016-06/2020 — Center (Standard Soundsystem)
- Mercedes E-Klasse S213 02/2016-04/2023 — Center (Advanced Sound System)
- Mercedes E-Klasse S213 02/2016-04/2023 — Center (Burmester High-End 3D-Surround-Soundsystem)
- Mercedes E-Klasse S213 02/2016-04/2023 — Center (Burmester Sound System)
- Mercedes E-Klasse S213 02/2016-04/2023 — Center (Standard Soundsystem)
- Mercedes E-Klasse W213 05/2016-06/2020 — Center (Advanced Sound System)
- Mercedes E-Klasse W213 05/2016-06/2020 — Center (Burmester Sound System)
- Mercedes E-Klasse W213 05/2016-06/2020 — Center (Standard Soundsystem)
- Mercedes E-Klasse W213 Facelift 06/2020-06/2023 — Center (Advanced Sound System)
- Mercedes E-Klasse W213 Facelift 06/2020-06/2023 — Center (Burmester Sound System)
- Mercedes E-Klasse W213 Facelift 06/2020-06/2023 — Center (Standard Soundsystem)
- Mercedes EQC N293 02/2019-today — Front Door (Burmester Sound System)
- Mercedes EQC N293 02/2019-today — Front Door (Standard Soundsystem)
- Mercedes EQE V295 01/2022-today — Center (Burmester Sound System)
- Mercedes EQE V295 01/2022-today — Center (Standard Soundsystem)
- Mercedes EQE X294 09/2022-today — Center (Advanced Sound System)
- Mercedes EQE X294 09/2022-today — Center (Burmester Sound System)
- Mercedes EQE X294 09/2022-today — Center (Standard Soundsystem)
- Mercedes EQS V297 01/2021-today — Center (Advanced Sound System)
- Mercedes EQS V297 01/2021-today — Center (Burmester Sound System)
- Mercedes EQS V297 01/2021-today — Center (Standard Soundsystem)
- Mercedes EQS X296 02/2022-today — Center (Burmester Sound System)
- Mercedes EQS X296 02/2022-today — Center (Standard Soundsystem)
- Mercedes G-Klasse W463 01/1979-01/2005 — Center (Standard Soundsystem)
- Mercedes G-Klasse W463 Facelift 04/2007-05/2018 — Center (Harman/Kardon)
- Mercedes G-Klasse W463 Facelift 04/2007-05/2018 — Center (Standard Soundsystem)
- Mercedes G-Klasse W463_2019 05/2018-today — Center (Burmester Sound System)
- Mercedes G-Klasse W463_2019 05/2018-today — Center (Standard Soundsystem)
- Mercedes G-Klasse W465 02/2024-today — Center (Burmester Sound System)
- Mercedes G-Klasse W465 02/2024-today — Center (Standard Soundsystem)
- Mercedes GLB X247 02/2019-03/2023 — Center (Advanced Sound System)
- Mercedes GLB X247 02/2019-03/2023 — Center (Burmester Sound System)
- Mercedes GLB X247 02/2019-03/2023 — Center (Midline Soundsystem)
- Mercedes GLB X247 02/2019-03/2023 — Center (Standard Soundsystem)
- Mercedes GLC Coupe C253 09/2016-04/2019 — Center (Burmester Sound System)
- Mercedes GLC Coupe C253 09/2016-04/2019 — Center (Standard Soundsystem)
- Mercedes GLC X253 06/2015-04/2019 — Center (Burmester Sound System)
- Mercedes GLC X253 06/2015-04/2019 — Center (Standard Soundsystem)
- Mercedes GLC X253 Facelift 04/2019-06/2022 — Center (Advanced Sound System)
- Mercedes GLC X253 Facelift 04/2019-06/2022 — Center (Burmester Sound System)
- Mercedes GLC X253 Facelift 04/2019-06/2022 — Center (Midline Soundsystem)
- Mercedes GLC X253 Facelift 04/2019-06/2022 — Center (Standard Soundsystem)
- Mercedes GLE Coupe C167 02/2019-today — Front Door (Burmester Sound System)
- Mercedes GLE Coupe C167 02/2019-today — Front Door (Standard Soundsystem)
- Mercedes GLE V167 10/2019-02/2024 — Front Door (Burmester Sound System)
- Mercedes GLE V167 10/2019-02/2024 — Front Door (Standard Soundsystem)
- Mercedes GLS X167 01/2019-today — Front Door (Burmester High-End 3D-Surround-Soundsystem)
- Mercedes GLS X167 01/2019-today — Front Door (Burmester Sound System)
- Mercedes GLS X167 01/2019-today — Front Door (Standard Soundsystem)
- Mercedes S-Klasse W222 06/2013-12/2020 — Center (Bang & Olufsen BEO Sound)
- Mercedes S-Klasse W222 06/2013-12/2020 — Center (Burmester Sound System)
- Mercedes S-Klasse W222 06/2013-12/2020 — Center (Standard Soundsystem)
- Mercedes SL R232 02/2021-today — Rear (Burmester Sound System)
- Mercedes SL R232 02/2021-today — Rear (Standard Soundsystem)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Feels luxury, I approve
Size: King, Style: Warm
I have purchased high end comforters/duvet inserts and this one is somehow my favorite. It's so thick and fluffy.
I was going to do the double duvet insert method to create an extra lush bed situation, but honestly it's not needed at all with this comforter! It poofs up wonderfully inside my duvet cover (king duvet, king insert) and it's like heaven. It's very cozy yet airy, and it moves well during the night and does not fee too heavy despite its weight.
This thing is definitely on the warm end and probably won't be suitable for Florida summers, but depending on how you set the AC at night it could be fine!
The comforter is weighty, it feels like quality, and has a soft fabric. I wouldn't use it without a duvet cover, that's more of an aesthetic choice but I like keeping it clean. The white is very white.
Honestly, I will be getting another one simply because I'm so impressed. Definitely no need to drop $300+ dollars elsewhere.
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Reviewed in the United States on October 25, 2025
★★★★★ 4
ALL SEASON IS TOO WARM!
Size: King, Style: All-Season
I got the King, All Season, to squeeze into a Queen duvet for extra floof and it's sooo cozy. Highly recommend.
I redacted 1 star though because although it says All Season, the amount of down in here feels like it's for winter. The first night I used it I woke up dripping in sweat. It's currently March, I live in Los Angeles area, hitting about 75° weather outside rn, but I sleep with AC full blast at night (usually hit about 64 when I wake up). I can't sleep with it, I'll need to buy the "cool" one, and hope that isn't tooo thin.
Don't get me wrong, it's a great insert, but holy hell, it's too heckin' warm. I saw someone else mention it and wish I had honed in on their comment. I don't wanna return it as it was used, so I'm stuck with it now.
*UPDATE*
I am back because I also bought the "Cool" blanket as well after experiencing the heat of the all season and it too is also too hot for me. I've had a duvet before but I guess not filled to the capacity of these blankets. If you're a hot sleeper maybe look elsewhere?
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Buy this instead of the ‘brand name’ one
Size: Twin, Style: Warm
Tl:DR:
Buy it, it’s super cheap, better than the one I paid 2x the price for and soft as it can get, and it really is a ‘Winter comforter’.
This review is going to sound like I got paid off for it but I actually didn’t. I bought another comforter prior to this one, paid close to double of this one and that the ‘on sale’ price, and it is trash compared to this Amazon basics one. Both claim to be thick warm comforters but I can literally stack two of the other brand and maybe they’d be almost as thick as the Amazon one. I only bought this one because the other ‘winter’ one I bought was so thin and flimsy I figured adding another ‘cheapie’ one might make me not freeze to death. As soon as I arrived I noticed that this Amazon one was WAY thicker, nicer looking, softer and warmer than the old one. Just to try it out I stacked both of them together to see if I wouldn't freeze to death like I was doing with the old ‘expensive’ one: five minutes in and I was sweating. That’s all it took, I immediately removed the duvet cover from the old one, switched it to the Amazon one and threw the old one somewhere where I couldn’t see the money I had wasted, and yes the Amazon was warmer and softer even WITHOUT the duvet cover. I’m probably going to get the light version for when fall hits and I don’t quite need the heavy one yet. Buy it you won’t regret it and hey it’s Amazon brand so if you don’t like it they’ll take care of you, but I HIGHLY doubt you won’t love this thing.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great duvet insert
Size: King, Style: Light
Perfect duvet insert. I got a pretty expensive duvet to cover this and they worked great together. The fit was perfect and I didn’t feel like the duvet was smaller than its cover. This was a cheap option that keep us warm while not being too think. This product is also breathable and recommend if you live in a place that transitions from hot to cold often.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Great mid-weight comforter
Size: King, Style: Light
Great comforter, especially for the price. I put it in the dryer for a bit when I first got it and it became nice and fluffy. Perfect mid-weight duvet.
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Reviewed in the United States on May 12, 2026