Spanish modular synth maker **Corsynth** has introduced the **C103 Frequency Multiplier / Divider**, a new module for MU modular synthesizers.

The C103 Frequency Multiplier / Divider includes two frequency dividers and two frequency multipliers, that generate four new signals. Frequencies are one / two octaves higher / lower than the original signal.

The module includes a built-in three channel mixer with two inputs per channel. The first channel makes possible for the user to select between the original signal from the divider and from the multiplier. In the second channel, the user can choose between the signal divided or multiplied by two. In the third channel the options are, the signal divided or multiplied by four. With this set-up up to eight different mixer options are possible which creates a wide range of sonic possibilities.

**Frequency Divider**

The frequency divider accepts as input any kind of basic waveform ( square wave, triangle wave, saw wave, sine wave… ) with 10Vpp amplitude ( standard VCO amplitude ). Inside the C103 there are two frequency dividers connected in series. The first one generates a square wave which frequency is half of the original signal ( one octave below ). The second one generates also a square wave wich frequency is the original frequency divided by four ( two octaves below ).

**Frequency Multiplier ( Doubler )**

Sine waves and triangle waves with 10Vpp amplitude ( standard VCO level ) can be used as input for the frequency multiplier. The C103 contain two frequency multipliers connected in series. The first one generates a waveform which frequency is two times higher than frequency of the original signal ( one octave higher ) . The second one generates a waveform which frequency is four times higher than the frequency of the original signal ( two octaves higher ). The frequency multiplication is achieved using a full wave rectifier, that’s why when the signal input is a sine wave, the output is not a sine wave, instead is a wave from with richer harmonic content.

The frequency divider input is normalized to the multiplier input, so while nothing is connected to the divider input, it will take the signal connected to the multiplier input as its input signal.

**Audio Demos**

This module is built using Switchcraft jacks, NKK switches, Cosmo knobs (the same used by Moog Modular) and a silk screened front-panel.

The C103 Frequency Multiplier / Divider is available now for 160 Euro + VAT. See the Corsynth site for details.