XAOC Devices Koszalin 1964 Stereo VC Frequency Shiftor

XAOC Devices Koszalin 1964 Stereo VC Frequency Shiftor

Marsoni

M251S

$299.50

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

XAOC Devices Koszalin 1964 Stereo VC Frequency ShiftorKoszalin is a 10hp full stereo frequency shifter (2 ins 4 outs) offering both quasi exponential and linear frequency change of up to + 5kHz as well as full stereo feedback under voltage control. Frequency shifting results in linear translation of signal spectrum producing all kinds of atonal sounds. It should not be confused with frequency scaling, also known as pitch shifting. Complex phase cancellation patterns occurring with frequency shifting and

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I LOVE these pillows. I bought the king-size set and ended up liking them so much that I want them on every bed in the house. They’re soft but still supportive, and they actually work for different sleeping positions, back, side, and stomach sleepers. They don’t go flat, but they’re also not overly stiff, which is such a hard balance to find. I throw them in the washing machine which makes them super easy to wash! The size is true to King! They feel cool and hotel-quality, and the down-alternative fill is great if you don’t want real feathers. I wake up without neck pain, and they keep their shape night after night. If you’re picky about pillows (like I am), these are absolutely worth it. Comfortable, affordable, and a great value for a set of four.

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Reviewed in the United States on February 4, 2026

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Emanuel

Cuba, US

★★★★★ 5

Feel perfect, not too soft and not too hard.

Color: White, Size: Queen (Pack of 4)

Incredibly perfect pillows. They feel not firm nor too soft but just right.

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Reviewed in the United States on May 18, 2026

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