Formants are important ingredients of miscellaneous sounds known to us like speech and music instruments. To synthetise these formants you need at least three resonant band pass filters with individual control. For that reason each of the multimoder filters contained in the RS360 has it´s own 1V/octave cutoff control input and an attenuator for the input signal. In addition there´s a global control input with attenuator and a Master Cutoff control that control the cutoff frequencies of all three filters simultaneously.
With this module you can realize not only formanst but also interesting stereo effects when the notch and bandpass ouputs are placed left and right in the stereo field. Generating sounds is another speciality of this module as all three filters can self-oscillate; at a high resonance setting, shortly before self-oscillation, a pulse signal or a trigger from a sequencer or a LFO will "ring" the fiter and produce a decaying sinusoid wave; great for percussions. Furthermode, connecting the module´s audio output(s) with the CV input(s) creates very complex timbres.
The filters in the RS-360 are related to these from vintage Roland synths SH-3 and SH-2000.
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!
Analogue Systems modules have a power cable with a different connector so an adaptor is needed for the use in an Eurorack case. Under "modular accessory" you'll find the Synovatron ASm2Db adaptor. An adaptor cable can't be fabricated for this module.
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.
Audio: one signal input, separate summed filter outputs for lowpass, highpass, bandpass and notch
CV: variable Master-CV input; separate cutoff CV input with 1V/octave per filter
3U Analogue Systems module, 18 HP wide, 70 mm deep
Power consumption: 150mA typical, 200mA when powering up