Analogue Systems RS-375 PHG expander (additive synthesis)


The expander module RS375 for the polyphonic harmonic generator RS370 is very recommended if you want to use the capabilities of additive synthesis. It allows you for controlling up to 24 harmonics in realtime via control voltages and 16 potentiometers for direct control. Alternately you can use it for control of envelope parameters.



16 potentiometers for direct control of the level of 16 harmonics. Depending on the mode chosen in menu 2.5 the first ten potentiometers can be used to control the parameters of the multistage envelope: times and partially the levels of attack, slope 1, slope 2, slope 3, sustain and release.

In addition you´ll find four CV inputs for controlling a number of parameters and four Controller CV outputs. The latter make sense when you use the PHG as a MIDI interface and you want to output MIDI controllers as CVs.

The expander connects internally to the RS370.


Usage with Eurorack:
Analogue Systems' modules are designed solely for use in cases and cabinets made by Analogue Systems. Through the use of adaptors or adaptor cables, however, it is possible to connect them to Eurorack cases.
Should you chose to use an Analogue Systems module in an Eurorack case, please note that the warranties are thus void and the use occurs at your own risk! If the module is plugged in incorrectly and therefore damaged the customer has to bear any costs for repair and shipping!

Because of the different position of the mounting holes there will be a gap of 0.5HP (= 2.5 mm) when mounting an Analogue Systems module next to a Eurorack module. Take this into consideration when planning your system. Gaps can be covered with 1.5HP wide blank panels by Doepfer.


16 CV inputs with attenautors, 4 CV inputs without attenuators
4 CV outputs


3U Analogue Systems module, 48HP wide, 75mm deep
max. 70mA current draw; powered by RS-370

0.587 kg
Article Number
availability ? shortly avaliable
€ 19% VAT excl. €427.73 € 19% VAT incl. €509.00
Excl. 19% VAT, Excl. shippingLieferzeit 1