JBL ST400 BLK 8 Ohms 150 Watts RMS Super Tweeter

JBL ST400 BLK 8 Ohms 150 Watts RMS Super Tweeter

Marsoni

M251S

$89.99

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

JBL ST400 BLK 8 Ohms 150 Watts RMS Super TweeterOverview The JBL ST400 BLK is a high performance super tweeter designed to deliver exceptional detail and clarity in high frequency reproduction without harshness. Ideal for professional audio applications such as PA systems, stage monitors, and various sound reinforcement setups, the ST400 BLK can be used individually in lower power systems or arrayed for increased coverage and sound pressure levels in higher power configurations. Features High Power

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Italian voice: I’m a big meaty fella so I put off a lot of heat ya hear. These pillow cases have changed my life. One moment they’re hot and the next you flip them and you’re blasted with a blast of ice cool what it feels like to chew 5 gum feeling capeesh. I would reccomend these pillow cases to even my grandma. If ya wanta get a rest so good that it feels like ya been sleeping with the fishes get these pillow cases, they’re the real deal. Then stop at Pauline’s joint and grab a slice of pizza say Vinnie sent ya. Anyways I gotta go my wife’s cooking up a mean lasgna and we’re gonna watch the dodgers. Let me know how these treat ya I guarantee they will change your life. Vinnie out

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Reviewed in the United States on February 15, 2026

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Amazon Customer

Fort Morgan, US

★★★★★ 4

Soft "cooling" case.

Yes it is very cool when you lay on it. It doesn't stay cold though. Within a minute or 2 to whatever your temp is.

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Reviewed in the United States on December 25, 2025

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CountryGal

Port Orchard, US

★★★★★ 5

Great for hair and skin. Great buy.

These pillow cases are great for my hair and skin. They look good, hold up well in the washer and dryer, and the price is great. They are cooling. Of course I wish they could be more cooling, but honestly I'm not sure that's even possible. Great pillow cases. Already bought more for other heads. Would buy again.

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Reviewed in the United States on March 11, 2026

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Melissa

San Leandro, US

★★★★★ 1

Hot hot hot. Side sleepers will hate it

At first touch, these are the coldest pillowcases I own … but only for seconds. Once you actually lay on them, within seconds they adjust to your body temp, the heat feels trapped, my head begins to feel hotter than before I laid down - which has in turn caused me loathe these pillow cases. I hate that I have missed the return window. Would never buy again, would never recommend. My satin ones aren’t even this hot! I gave them the good ole 30-day try. Side sleepers - if you are like me and sleep on your side with arm tucked under pillow - flipping this pillow over in hopes of a cold side - forget it, it’s already hot from your arm.

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Reviewed in the United States on August 29, 2025

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Trevor Barton

Draper, US

★★★★★ 2

Ehh

Pills up rather quickly

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Reviewed in the United States on June 7, 2026