Serge Modular for Eurorack

Serge Sequencer 8 XL (SEQ8XL)

The SEQ XL is a modern incarnation of Serge's analog sequencer / programmer. 8 stages. 2 rows of CV output. A - B (A minus B) outouts the difference between A and B (-5 to 5V range). The length of sequences can be set via the pushbuttons - while a sequence is running. RESET, UP/DOWN, HOLD inputs. Switch to start / stop the sequencer. PULSE STAGE SELECT inputs allow selecting specific stages. great at audio rates. ALL GATE output goes high when any button is pressed (or a stage is selected by a pulse input) and allows the use of the SEQ8 as a simple mini-keyboard.

The SEQ8XL is available as a complete (built) module os as a DIY (semi-)kit (color printed front panel made in Germany + pcb with all SMT installed, this is not a "full kit"!).

Module (standard) € 540 - ships within 1-2 weeks
Module (limited, 4U-style buttons) € 600 - low stock
DIY kit (standard) € 350 - in stock

panel + pcb kit 350 EURModule (special) 600 EURModule (standard) 540 EUR

Serge New Ring Modulator 2017 (RING)

The 2017 RING is an improved version of the late Serge Ring Modulator (R9), designed by Serge himself for Random*Source in 2017, more than 40 years after the launch of the Serge Modular system. According to Serge, the RING is one of the most sophisticated modules in the Serge system. The new version has been developed by Serge for and in close cooperation with Random*Source.

Serge New Timbral Oscillator (NTO)

The NTO is Serge's legendary and most ambitious oscillator. It combines raw vintage sound with astonishing precison.

The new NTO by Random*Source has been developed in close cooperation with Serge. It took about 2 years to replace obsolete parts and bring the NTO to SMT with some optimizations (precision references and parts) for stability. It also features a new Pulse Out (square wave) in addition to the classic outputs.

Serge Triple+ Waveshaper (TWS+)

The TRIPLE WAVESHAPER (TWS) is a non-linear modifier which can transform a sawtooth wave into a sine wave. This classic module incorporates three independent waveshapers for modifying synthesizer waveforms or for processing signals from preamplified instruments. Although originally designed as a waveshaper for early Serge oscillators, this module has been found to be a excellent modifier of electronic and acoustic sounds, and is highly recommended for subtle timbral modifications beyond the range of simple oscillator/filter patches.

Serge Dual Universal Slope Generator mk2 (DSG)

The Serge Dual Universal Slope Generator (DSG) is probably the most versatile module of a Serge Modular system, incorporating a wide range of functions for both CV and audio. Some functions for which one Slope Generator can be used: VC Transient Envelope Generator, VC LFO, VC Portamento device, Envelope Follower (Detector), VC Pulse Delay (Monostable), Sub-Harmonic Series Generator (Divider), Audio Oscillator with variable waveform symmetry (saw to triangle), Non-Linear Audio Processor (low-fidelity VCF).

From the catalog: "The Universal Slope Generators are unity gain voltage followers with voltage controllable slopes. The range of control is exponential, extremely wide, and the Rise and Fall times can be controlled independently. The range of the Slope Generator is from sub-sonic to high audio frequency. Trigger inputs and trigger outputs allows each section of this dual module to function as a transient (envelope) generator, pulse delay, or in a "cycling mode" (to produce an LFO or clock). Since the Rise and Fall times are voltage controllable, this adds another dimension to the above functions.

The DSG mk2 version has been optimized for audio performance and speed/precision. The top section covers a frequency range up to more than 10kHz. It also offers improved tracking and some temperature compensation.

Now - for the first time and licenced by Serge - the DSG is available as an updated (mk2) version kit for Euro.

Equal Power Stereo Mixer

The Stereo-Mixer is a 2 input, 2 output equal-power panning mixer designed combine the sound of the famous Serge VCAs with the most audiophile parts available today in a special edition for Eurorack - NJR Muses op-amps and THAT2180 VCA chips. The module has 2 independent input channels (with attenuators) that can be Stereo panned between the 2 outputs. Each channel's gain is controlled by a gain knob and as Gain CV input (with attenuator) which allows to go into massive overdrive with a very organic sound. There are also two AUX inputs that allow signals to be routed in at unity gain. Both panning and Gain CV inputs have been designed to handle audio rates, making the Stereo Mixer a very powerful waveshaping and droning tool.

Beware that the module is able to deliver massive gain, resulting in output levels of up to appr. +/-11V when overdriven, so make sure your other equipment (AD converters, mixers) can handle this

Two Aux inputs can also be used to chain mixers. The output is available at a pair of banana jacks as well as (6.35mm / 1/4") TRS jacks (phone connectors) for connecting to external amplifiers, ADCs etc.

Serge Divide by N Comparator (÷NCOM)

The Serge Divide by N Comparator (NCOM) is a rare, much sought-after and very essential Serge module covering a number of functions: comparator, voltage-controlled pulse divider, and voltage-controlled staircase generator.

The ÷N COMPARATOR consists of two sections - a comparator (right side) and a voltage-controlled pulse divider (left side). The ÷N output of the pulse divider sends out a pulse on every N-th comparator pulse where N is a number from 1 to 31. N can be (pre-)set with the divider’s control knob (1 ÷N) and can by changed with a control voltage. The VC knob (attenuator)on the bottom of the left side determines how much effect the control voltage has on “N”. In addition, the divider generates a staircase waveform with N steps. This can be used to produce whole-tone steps when run into the 1V/Oct input of a VCO or as a stepped control voltage to change for instance the cutoff of a filter.

The comparator provides a number of useful “housekeeping functions”: Logical decisions (if the +input is greater than the -input, the output will be high, otherwise low), Level detection (whenever a variable waveform crosses the theshold, a pulse is generated ), Pulse width modulation or Rectifying a waveform (e.g. a sine or triangle wave). (More applications and info in the Build Doc).

Now - for the first time and licenced by Serge - the NCOM is available as DIY kit for Euro.

Serge Variable Slope filter (VCFS)

The Serge Extended Variable Slope filter (VCFS) is a unique filter of the Serge system, covering a wide range of sonic character. According to the 1983 Serge catalogue, the “VARIABLE SLOPE VCF (VCFS) allows the amount of filtering to be dynamically controlled, from barely perceptible filtering to highly resonant, sharp cut-offs. With the variable slope control in the center position, the VCFS acts as a typical flat-response VCF, with high, low, and band~pass outputs available simultaneously. The slope of the cut-off is 12 db/octave. As the control is moved toward the maximum position, the resonance of the filter increases, so that the cut-off becomes sharper."

Now - for the first time and licenced by Serge - the VCFS is available as DIY kit for Euro.