Cwejman NS-4 Noise-SampleHold-Lag


The NS-4 features two modules in one. On the one hand a noise generator with different colors and on the other hand a sample & hold generator with an internal lag (= slew limiter) and internal LFO.

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 analog noise generator delivers white, pink an red noise at three separate outputs. The S&H generator is always triggered by the internal LFO which rate ranges from 0.1Hz to 500Hz and is controlled manually or with a 1V/octave control voltage. The LFO can be re-triggered by any (!) external signal.

The S&H uses the internal noise signal for sampling but also accepts an external signal which level can be adjusted by a potentiometer. Afterwards the S&H signal passes a slew limiter stage. It's slew time ranges from 0.1Hz to 1kHz and can be set with a control or a CV. Both CV inputs have attenuators so you can set the modulation intensity manually.

Trimmers on the backside allow you for adjusting the LFO rate.

All Cwejman modules are screened against interferences, protected against reverse polarity and contain calibration options on the backside. (See photograph.)

Attention: Unlike other manufacturers, the red stripe of Cwejman's flat ribbon cable indicates the positive +12 V rail, not the negative one!


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.)


Inputs for external sample signal and re-trigger signal
CV inputs for the rates of internal LFO and slew limiter.
Outputs for S&H signal, white, pink and red noise.


3U Eurorack module, 10HP wide, 25mm deep
current draw: 20mA

0.3 kg
Article Number
External Links
This product cannot be reserved. Please use the email notification.
€ 19% VAT excl. €331.93 € 19% VAT incl. €395.00
Excl. 19% VAT, Excl. shippingLieferzeit 1