Cwejman FSH-1 Frequency Shifter


The FSH-1 module is a voltage controlled frequency shifter in studio quality. Unlike to other product on the market there is no bleedthrough of the internal oscillator and no audible noise! The signals can be up- and down-shifted; alternatively the module can be used as a high-quality ring modulator.

We currently do not accept pre-orders for Cwejman products. If you are interested in this module, please use the availability notification. The number of Cwejman circuits is limited. Therefore, we recommend you to order online IMMEDIATELY when a module becomes available. Enquiries via e-mail or telephone are usually not fast enough. (More detailed information can be found on the product page.)



The carrier frequency of the oscillator can be switched into LFO mode and reaches from .01Hz to14kHz!
Two audio signals can be connected, of which the first one´s level can be adjusted. There´s also a coarse and fine tune control for the VCO and frequency modulation inputs. Generally all Cwejman modules are shielded from interferences and contain lots of calibration possibilities on the backside, see picture.


We currently do not accept pre-orders for Cwejman modules. For some products, there are waiting lists with pre-orders from the years 2013 to 2017, which are being processed as a matter of priority.
If you’d like to be informed as soon as this module is back in stock, please activate the availability notification via e-mail.
Please note: The number of Cwejman modules is always limited and much lower than the number of interested parties. Therefore, we recommend to order IMMEDIATELY and ONLINE if a Cwejman product becomes available. Enquiries via e-mail or telephone are usually not fast enough.
If the demand is higher than the supply, unfulfillable pre-orders will be deleted. In this case you’ll receive an e-mail. (Pre-orders on the waiting lists mentioned above are excluded from this policy.)


Audio: 2x In, 3x Out (downshifted signal, upshifted signal, mix of both)
CV inputs: 1x Mix, 2x Carrier Frequency


3U Eurorack module, 14HP wide, 25mm deep
Current draw 40mA

0.4 kg
Article Number
This product cannot be reserved. Please use the email notification.
€ 19% VAT excl. €571.43 € 19% VAT incl. €680.00
Excl. 19% VAT, Excl. shippingLieferzeit 1