Doepfer

• Polyphonic filter module with 4 analogue 24dB low-pass filters
• Common controls for filter frequency; filter modulation; resonance and input level
• All parameters controllable via CV with own attenuators
• Per filter: audio input; FM input; audio output
• Current consumption: 70mA (+12V) / 70mA (-12V)
• Width: 8 HP
• Depth: 50 mm

• Compact 2-channel VCA
• Per channel control for basic gain and CV attenuator
• Mute function per channel and switchable characteristic between linear and expotential
• Current consumption: 30 mA (+12 V) / 30 mA (-12 V)
• Width: 4 HP
• Depth: 50 mm

• Hammer action keyboard with 88 keys
• Graded hammer action keyboard (TP/40GH) with after touch
• Black front- and back-cover
• 2-Row LC-Display
• 16-Character LC-Display
• 24 Buttons
• 8 Menu buttons with LED-indicator
• 2 Wheels with assignable function
• 2 Sliders (60 mm) with assignable function
• 1 control knob
• 1 Rotary control knob
• 2 Midi-outputs
• 1 Midi-input
• Terminals for double foot-switch
• Connections for 2 foot-control-pedals
• USB port
• 8 Split zones
• Dimensions: approx. 155 x 26 x 10 cm
• Weight: approx. 24 kg
• Colour: Black
• Including power adapter

• Synchronization of clock-controlled modules via MIDI and USB
• MIDI input
• USB input for MIDI via USB
• Clock outputs
• Wait button / control input
• LED indicators for Clock, "1" and Start
• Power requirement: +50 mA (+12 V) / -50 mA (-12 V)
• Width: 6 HP
• Depth: 50 mm

• Vintage Edition
• Size: 3 RU
• A series with 84TE for the installation of modules
• Dimensions (W x H x D): approx. 445 x 150 x 160 mm
• Colour: Black
• Including external power supply (1200 mA) and bus board

• 12 dB Multi-mode filter, in which the circuit of the SEM module is used
• Width: 8HP 40.3 mm
• Depth: 55 mm (measured from the rear of the front panel)
• Power requirements: +30 MA (+ 12V) / -20 mA (-12V)

• Passive routing module with 4 switching groups
• The upper position connects the top output to the centre
• The bottom switch position connects the lower output to the centre
• When the switch is in the middle position then the jacks are not connected
• Power requirement: 0 mA (+12 V) / 0 mA (-12 V)
• Width: 4 HP
• Depth: 20mm

• Hammer action keyboard with 88 keys
• Graded hammer action keyboard (TP/40GH) with after-touch
• Silver grey front- and back cover
• 2-rows, 16-character LC-Display
• 24 button keys, 8 of which are menu buttons with LED-indicator
• 2 Wheels with assignable function
• 2 Sliders (60 mm) with assignable function
• 1 Control knob
• 1 Rotary control knob
• Connections: 2 Midi-outputs, 1 Midi-input, terminals for foot control switch, connections for 2 foot-control-pedals, USB-connection
• 8 Split zones
• Dimensions: approx. 155 x 26 x 10 cm
• Weight: approx. 24 kg
• Including power adapter
• Colour: Grey

• Quad VCA / Voltage Controller Mixer
• Compact version of the A-135-1
• 4 Separate linear VCAs, each with CV input, signal input and signal output
• Sum signal of all VCAs additionally available
• Per channel level and CV control
• Stereo and quadrature operation selectable by jumper
• Width: 8 HP
• Depth: 40 mm

The frequency of the VCO is determined by the position of the range switch and tune controller and the control voltages at the CV inputs. Thus, the VCO provides the possibility of frequency modulation. You can set the footage (octave of the fundamental) with the selector switch. The Tune control is used to fine tune the VCO frequency.

In the pulse wave the pulse width can be adjusted manually or by voltage control or modulated (PWM).

• Width: 10 HP/ 50.5 mm
• Depth: 55 mm (measured from the rear of the front panel)
• Power requirements: +90 mA (+12V)/ -20 mA (-12V)

• With blue and white LEDs
• Analogue
• 2 Rows each with 8 potentiometers
• 1 Knob for each step, 1 LED
• Switch On/Off/Skip and switch Stop/Continue/Jump
• Modes of operation: 1x 16 (the two rows run in sequence, 2x 8 (rows run in parallel), and custom
• Different direction
• Three voltage/tone ranges selectable
• Quantisation
• Transposer
• Analogue interface for CV/Gate/Clock/Reset/Start-Stop In and Out (3.5mm jack sockets)
• Control either internally via integrated clock oscillator with frequency and pulse width control
• Externally via MIDI/USB
• Externally (via Analog Clock/Start/Stop) or rocker switch with 3 positions
• MIDI I/O
• USB connector
• Powered via power supply 12V AC / min. 400 mA

This interface converts MIDI information into 4 control voltages and one gate. It has an external plug-in power supply. It is important that the first control voltage and the gate are always set to MIDI note events, with the pitch bender being converted to the first CV. The remaining CVs can be used to control further parameters of an older synthesiser in the sequencer, e.g. filter modulations. The 3 control voltages can be controlled via MIDI controllers. The interface receives an adjustable MIDI channel, which means that looping the MIDI signal makes sense.

• Two jacks for CV1 / 2 and CV3 / 4
• Jack for Gate / Trigger
• Learning button with LED for setting the MIDI channel
• Optical display of the gate / trigger function via LED
• MIDI-in, MIDI-Thru connection
• Metal housing
• Dimensions: 95 x 75 x 35 mm
• Power connection: 7-12V / 100 mA

• Vintage edition
• Wallet-friendly baserack with PSU3 power supply (+12V / 2000 mA, -12V / 1200mA, +5V/4000mA, 100 - 230 V), for Eurorack modules
• 2x Module rows
• Size: 2x 3 U / 84 HP
• Ideal for the A-100LC6v / LC9v or as standalone housing
• External dimensions: 445 mm (W) x 80 mm (H) front / 190 mm (H) rear x 385 mm (D)
• Internal dimensions: 2x 84 HP x 3 U
• Colour: black

Module A-118 is a noise and random voltage generator. It produces the following signals: white noise, coloured noise, and random voltage. White and coloured noise can be used as audio signals, and also (in conjunction with an S&H module) as a control voltage. The resulting random voltage is mainly used as a control voltage, especially because of its low frequency content.

There are knobs to control the rate of change and amplitude of the random voltage, and two LEDs indicate the state of the voltage.

• Width: 8HP / 40.3 mm
• Depth: 40 mm (measured from the back side of the front panel)
• Power requirements: +20 mA (+ 12V) / -10 mA (-12V)

• External input / Envelope follower
• Width: 8 TE / 40.3 mm
• Depth: 45 mm (measured from the back of the front panel)
• Consumption: +30 mA (+12 V) / -20 mA (-12 V)
• Colour: Black

• 4-in-2 mix module in Eurorack format
• Four inputs with attenuator and pan control, plus two 3.5 mm mini jack outputs
• Width: 8 HP
• Depth: 30 mm
• Power requirements: +10 mA (+12 V) / -10 mA (-12 V)

• Analogue frequency shifter for audio signals
• Coarse and fine control for frequency shift, range approx. 20 - 5000 Hz
• Mix control for mixing down-shift and up-shift signal
• Adjustable squelch function with integrated VCA and envelope follower
• Level control with overload LED
• Internal quadrature oscillator with sine and cosine outputs
• Sine and cosine inputs for external VCO
• CV input with attenuator for frequency and mix
• CV control input for VCA
• Audio input and output
• Expandable with optional A-126-2 expander module
• Current consumption: 80mA (+12V) / 70mA (-12V)
• Width: 8 HP
• Depth: 60 mm

The module A-132-4 contains four identical voltage-controlled amplifiers (VCA) with exponential normalization. Each VCA has two control voltage inputs (CV1, CV2), a signal input (In), and a signal output (Out). The control voltage inputs CV1.1 and the signal inputs In1 can be bridged with the control voltage input CV2.1 via internal jumpers and with the signal input In2. This circuit is also available between amplifiers 2 and 3 as well as between amplifiers 3 and 4. If this circuit is not desired, then the jumpers must be removed.

In addition, the sum of all four outputs is available (lower left socket with the sum symbol). Therefore, amplifier 4 has only one control voltage input (CV4.1). If necessary, this socket can be bridged as control voltage input 2. Then the sum signal will no longer be available.

For each VCA output a jumper is available, which determines whether the output signal of the corresponding VCA is added to the sum signal. By default, all four jumpers are set (all four VCA output signals are added). By removing one or more of the jumpers, you can select which VCA output is added to the sum. The bridges can also be replaced by switches.

• Four exponential VCAs
• Designed mainly for audio signals
• Sum of all four outputs is available
• Width: 6 HP
• Depth: 60 mm
• Power requirement: +30 mA (+12 V) / -20 mA (-12 V)

• Fourfold LFO
• Per channel frequency control and output for triangle and square waveforms
• Two frequency ranges per channel selectable via jumper (0.002 Hz - 50 Hz)
• Current consumption: 30 mA (+12 V) / 30 mA (-12 V)
• Width: 4 HP
• Depth: 30 mm

• 88 Key hammer mechanism
• Graduated Hammer Keyboard (TP / 40GH) with After-touch
• 2-Line, 16-digit LC display
• 24 Touch buttons
• Pitchbend and modulation wheel
• 2 Programmable faders (60 mm)
• 1 Knob
• 1 Encoder
• 2 MIDI outputs
• 1 MIDI input
• Connection for double footswitch
• Connections for 2 foot controllers
• USB port
• 8 Split zones
• Colour: Black
• Includes power supply