Flight of Harmony Sound of Shadows Voltage Controlled PT Delay - DIY KIT

Flight of Harmony Sound of Shadows Voltage Controlled PT Delay - DIY KIT

Marsoni

M251S

$114.50

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

Flight of Harmony Sound of Shadows Voltage Controlled PT Delay - DIY KITDIY Kit of the Sound Of Shadows module. Build documentation here. The Sound of Shadows (SoS) is a voltage controlled (VC) digital delay module based around the PT2399 echo IC. The SoS is essentially two separate modules: a delay and a voltage controlled amplifier (VCA). The focus of the SoS was the delay while the VCA was thrown in because half of an LM13700 IC was unused, so the VCA is very basic. As with all f(h) products, the SoS was engineered

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I got this pillowcase for my husband because he is always hot at night and has trouble falling asleep because of it. The fabric of this pillowcase feels very similar to a cooling pillowcase that I have had for years and love (but is discontinued, so I can't get any more of them). It is a silky smooth, not-quite-satin fabric that feels initially very cool to the touch. It fits on a standard size pillowcase, and has a slight pocket end (not very much overlap, so it does come untucked during the night). My husband reports that this pillowcase is very cooling right when he goes to bed, but after a short while, it warms up and isn't really cool anymore. So if he doesn't fall asleep right away (and he usually doesn't), he has to flip it over. His head puts out a lot of heat at night though, so the pillowcase might stay cooler longer for others.

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Reviewed in the United States on September 13, 2025

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Amazon Customer

Louisville, US

★★★★★ 3

Doesn’t stay on the pillow.

Color: Gray, Size: Queen (2 Count)

The concept is there, but the pillow case doesn’t stay on. Every night the pillow case slides either half way or completely off the pillow. If it stayed on I would love it

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Reviewed in the United States on March 3, 2026

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Julianne OConnell

Phoenix, US

★★★★★ 5

Cooling comfort

Color: Gray, Size: Queen (4 Count)

Very comfortable and cooling. Love them. Help me fall asleep faster and stay asleep instead of flipping my pillow all night.

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Reviewed in the United States on August 17, 2025

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