Ring Modulators, Crossfaders

• Experimental ring modulator
• X and Y audio inputs, each with attenuator
• CV inputs (DC-coupled) for X and Y levels with attenuators
• DC offset controls for X and Y channels
• Mute switch per channel with CV input
• Positive and inverted signal output
• Peak LED
• Low-distortion circuit design with high headroom
• Low crosstalk between X/Y channels
• Current consumption: 60mA (+12V) / 60mA (-12V)
• Width: 12 HP
• Depth: 25 mm

• With SSI2162 VCA module
• Suitable for audio signals and control voltages
• Current consumption: 25mA (+12V) / 20mA (-12V)
• Width: 6 TE
• Depth: 32 mm

• Ring modulator with XOR and diode circuitry
• Mix control for crossfading between both circuits
• X, Y and CV mix inputs
• Outputs for mix, XOR and diode ring modulator
• Current consumption: 40 mA (+12 V) / 40 mA (-12 V)
• Width: 4 HP
• Depth: 25 mm

The A-134 is a voltage-controlled panning module. The module consists of 2 linear VCAs, which are inversely controlled by a control voltage, i.e., the more the volume of one VCA increases, the more the volume decreases on the other VCA. The module has 2 audio inputs with an attenuator, which is assigned to both VCAs. If there is nothing plugged into the second input jack (VCA2), then the audio signal of VCA1 will also be used for VCA2. There are 3 audio outputs available: VCA1, VCA2, and Mix (a mixed signal of both VCA outputs). With the A-134, voltage-controlled stereo panning effects (VCA outputs on left / right stereo channels), mono panning effects (e.g., between 2 different audio signals), or a mixture of both functions can be implemented.

The panning function can be controlled manually and via two external control voltages (one of which is equipped with an attenuator). As control signals, the following can be used: LFO (A-145, A-146, A-147), envelopes (A-140, A-141, A-142, A-119), random (A-118), theremin (A-178), foot controller ( A-177), or the voltage of a MIDI-to-CV interface (A-190 or A-191). The panning function is displayed optically via 2 LEDs.

• Width: 8 HP / 40.3 mm
• Depth: 40 mm (measured at rear of front panel)
• Current consumption: +40 mA (+12V) / -20 mA (-12V)

Module A-114 contains two separate ring modulators. A ring modulator outputs the product (multiplication X

• Vintage edition with black front panel
• Black front panel
• Width: 4HP/ 20.0 mm
• Depth: 40 mm (measured from the back of the front panel)
• Power Requirements: +40 mA (+ 12V)/ -30 mA (-12V)

• Module for creative sound design with two ring modulators, crossfader and VCA
• Rotary knobs for ring modulator 1&2-CV
• Crossfader and crossfader CV
• Signal and CV input per ring modulator
• AC/DC switch for crossfader
• Two crossfader signal inputs and crossfade CV input
• VCA CV input switchable from unipolar (0V to +10V) to bipolar (-5V to +5V)
• Separate outputs for both ring modulators and crossfader/VCA
• Current consumption: 38mA (+12V) / 32mA (-12V)
• Width: 10 HP
• Depth: 35 mm

• Suitable for voltage-controlled cross-fading of audio as well as CV signals
• Width: 4 HP
• Depth: 45 mm
• Current consumption: +20 mA (+12 V) / -10 mA (-12 V)

Module A-114 contains two separate ring modulators. A ring modulator supplies the product, or multiplication ( X

• Width: 4TE / 20.0 mm
• Depth: 40 mm (measured from the back of the front panel)
• Power requirements: 40mA (12V) / -30mA (-12V)

• With three functions: Ring modulator, sample & hold/ track & hold, slew limiter
• Width: 4 HP
• Depth: 40 mm
• Power consumption +40 mA (+ 12V)/ -30 mA (-12V)

• Classic ring modulator
• Analog structure
• Width: 6 TE / HP
• Depth: 50 mm
• Volume control for carrier and modulation input
• Power requirement: +20 mA (+12 V) / -9 mA (-12 V)