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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The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.

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Reviewed in the United States on January 12, 2026

Verified Purchase

Amazon Customer

Birmingham, US

★★★★★ 5

Fixed my over temp warning issue.

Easy to change and work like new. No more over temp warning at idle.

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Reviewed in the United States on June 9, 2025

Verified Purchase

Michael Rhodes