CS 6.75" (165 mm) Coaxial Speaker System

Marsoni

M251S

$89.95

Get it in 3 business days with 1 day shipping. Friday, May 29

CS 6.75" (165 mm) Coaxial Speaker SystemThe CS series delivers remarkable performance and ultra clean bass, utilizing a heavy duty motor magnet structure featuring EVC (Extended Voice Coil) technology not found in stock speakers. They use polypropylene cones with tough, ribbed, UV treated surrounds for precise linear excursion and reliability. CS Series 6 3 4 inch Coaxial Speakers are the perfect way to upgrade your factory speakers. CS Series Coaxials deliver remarkable performance and

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Sticks well. Definitely thicker and nicer than the Kilmat version. If I were buying again I would just buy more of this, the value is better even though you get less total coverage per pack. Can be cut to size easily, we used a box cutter which got a little gummed but but not too bad. we were able to get it in and around everywhere we needed to put it and it held up well as we were mashing it into weird spots. It doesnt smell hardly at all while being applied and once its on there is no smell whatsoever The product is great for what it is. 4 stars only because I think it gets oversold for how much this alone can do. We did notice a slight reduction in noise but nowhere near the multiple decibels we see claimed everywhere. If your vehicle is mostly quiet but just has that little bit getting through this will probably do wonders, If you have a vehicle where there's significant engine noise in the cabin you'll need more than just this to bring that down.

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Reviewed in the United States on September 12, 2025

Verified Purchase

JaroldHarold

Belleville, US

★★★★★ 5

Great product!

Style: 30 sqft

I can say this product makes a huge difference with road noise and is cleaner and easy to work with when applying compared to other mats that cost about the same price.

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Reviewed in the United States on February 14, 2026