JBL - SRX818S - 18" Passive Subwoofer

Marsoni

M251S

$844.50

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

JBL - SRX818S - 18" Passive SubwooferThe JBL SRX818S is a professional single 18" compact subwoofer for concert, touring, and DJ applications requiring powerful extended bass reinforcement. Featuring JBL's professional 18" woofer optimized for maximum bass output, the SRX818S delivers room shaking low frequencies to complement SRX series full range speakers in complete professional sound reinforcement systems. Single 18" JBL woofer optimized for maximum bass output Compact design for

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I’ve been using these for several days now and I did notice a difference. I tend to get hot while sleeping, so I was curious if they would actually help, and they do feel cool when you lay on them. I also like that they’re soft and comfortable, not that weird texture some “cooling” products have. So far, I’ve been really happy with them.

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Reviewed in the United States on May 23, 2026

Verified Purchase

Layton Phillips

Cuba, US

★★★★★ 5

Great pillow, but the cooling effect depends on the cover

Color: Blue-ice Plus, Size: King(Pack of 2)

I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation. However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through. That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone. Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.

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Reviewed in the United States on February 17, 2026