Doepfer

• Manual setting of the decay time
• LED for each output
• Normalised trigging inputs
• Euro rack format
• Width: 8 HP
• Depth: 50 mm
• Power requirements: +30 mA (+12V) / -10 mA (-12V)

• With LED display
• Connections: MIDI input, MIDI output, CV1, CV2, Gate, Clock, Reset
• 3-Digit LED display
• Eurorack format
• Power requirements: +200 mA (+ 12 V) / -40 mA (-12 V)
• Width: 10 HP / 50.5 mm
• Depth: 30 mm (measured from the rear side of the front panel)

• Module consists of a voltage-controlled low frequency oscillator (LFO) and a voltage controlled amplifier (VCA)
• Switchable to polarizer / ring modulator, and voltage-controlled linear delay envelope (only one parameter: Delay or Attack) for delayed LFO operation with voltage control
• Width: 8 HP
• Depth: 55 mm
• Power requirement: +60 mA (+12 V) / -40 mA (-12 V)
• Width: 8 HP
• Depth: 55 mm
• Power requirement: +60 mA (+12 V) / -40 mA (-12 V)

• Can be used as a crossfader between two signals or as an insert for external effects
• Euro rack format
• Width: 8 HP
• Depth: 40 mm
• Power consumption: +20 mA (+12V)/ -20 mA (-12V)

• Passive attenuator
• Level attenuation for voltage controls or audio signals for A-100 modules or modules from other manufacturers without attenuators
• Width: 4 HP
• Depth: 20 mm

• Vintage edition
• Size: 9 U (3x 3 U)
• Three rows with 84 HP each for installing modules
• Dimensions (W x H x D): approx. 445 x 275 x 160 mm
• Usable depth for A-100 modules: approx. 80 mm in the power supply area (lower right), otherwise around 100 mm (measured from the inner surface of the front panel)
• External dimensions (W x H x D): approx. 445 x 420 x 160 mm
• Internal dimensions: 3x 84 HP x 3 U
• Colour: black
• Includes PSU3 PSU (+12 V / 2000 mA, -12 V / 1200 mA, +5 V / 4000 mA, 100 - 230 V)

Doepfer A-121s VE; Eurorack module; Vintage Edition with black front panel; Stereo Multimode VCF; continuously controllable characteristic for each filter (lowpass to notch and highpass to bandpass) with switchable link; manual common controls for filter frequency and resonance; bipolar Delta F control for adjusting the spread between both filter frequencies; CV inputs with attenuverters for filter frequency 1 & 2, common filter frequency and Delta F; per filter CV input with attenuator for resonance or characteristic (configurable via jumper); two audio inputs with level controls and two audio outputs; filter slope: -12dB/oct.; power consuption: 100mA (+12V) / 100mA (-12V); width: 12 HP; depth: 45mm

• Hammer Action
• 88 Keys
• Graduated Hammer Keyboard (TP / 40GH)
• USB port
• 1x MIDI Out
• Connection for double footswitch
• Includes power supply

• Width: 8 HP
• Depth: 40 mm
• Power requirement: +40 mA (+ 12V) / -0 mA (-12V)

• Linear VCA
• Primarily for controlling control voltages
• Width: 8 HP
• Depth: 45 mm
• Power requirements: +20 mA (+12 V) / -10 mA (-12 V)

• 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)

• Primarily suitable for audio signals
• Width: 8 HP
• Depth: 35 mm
• Power requirements: +10 mA (+12 V) / -10 mA (-12 V)

• Compact 4-channel mixer
• Suitable for CV and audio signals
• Volume control and mute switch per channel
• 2 Single output groups
• 2 Mix outputs
• Power requirements: +10 mA (+12 V) / -10 mA (-12 V)
• Width: 6 HP
• Depth: 40 mm

• Vintage edition with black front plate
• Designed to produce 'staircase' voltages
• Consists of two separate sample / hold circuits
• Eurorack format
• Width: 4 HP
• Depth: 30 mm
• Power requirement: +20 mA (+ 12V) / -20 mA (-12V)

• Standard VCO for the A-100 modular system
• Black front panel
• 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)

• 2 Switch rows with 8 steps each
• Eurorack format
• Width: 50 HP
• Depth: 40 mm
• Power requirement: +80 mA (+ 12 V) / -20 mA (-12 V)
• Optional expander module: Article Nr 192018 (not included, must be ordered as a separate item)

• Quad USB Power Supply
• 4 USB ports for powering external devices
• Requires a housing with +5 V power supply (Doepfer A-100PSU3 recommended)
• Power requirement: 0 mA (+12 V) / 0 mA (-12 V)
• Width: 2 HP
• Depth: 30 mm

Note: no USB functionality!

• Expansion module for the A-155 (Article Nr #154958)
• Various operating modes
• LED display
• 8 or 16 sequencer steps
• Controls up to 2x A-155 (2x A-155 are required for 16 sequencer steps)
• Eurorack format
• Width: 22 HP
• Depth: 80 mm
• Power consumption: +60 mA (+12V)/ -20 mA (-12V)

Module A-108 is a completely new voltage-controlled low pass / band pass filter based on the well-known transistor ladder (Moog ladder). The module has an internal 8-stage low-pass filter with different slopes to select from: 6, 12, 18, 24, 30, 36, 42 and 48 dB per octave. Of these 8 available levels, only the outputs of levels 6, 12, 24 and 48 dB are routed to outputs. These appear to us to be the most useful setting arrangement, as the differences are clearly audible. For example, the difference between 24 dB and 32 dB, or between 42 dB and 48 dB is hardly audible. If, however, you need one of the other filter stages to be available as an output, this can be changed internally.

Note: Only 4 output stages are available, which are set in the manufacturing process to the filter levels 6, 12, 24 and 48 dB. By changing the internal connections (jump wires), each of the filter stages can be set to an output, but only four at any one time. A multiway switch could be used, but the preinstalled factory settings (6 / 12 / 24 / 48 dB) represent the best combination - For example: having as simultaneous outputs the slopes 36, 42, and 48 dB make little sense from a music standpoint.

The resonance (or emphasis) can be adjusted manually right up to self-oscillation, in which case the filter will behave like a sine wave oscillator. An external input (feedback) is available for the resonance, which is fed internally to the 48 dB output if no cable has been plugged into the feedback socket. Any other modules can be looped into the feedback path (e.g., a VCA for voltage-controlled resonance or phaser-/ frequency sliders for phase / frequency shift effects).

The frequency is manually controlled (frequency control), via 3 control voltages (CV1, CV2, CV3), whereby separate attenuators are available for CV2 and CV3.

The audio input is sensitive enough that distortion is possible even at normal A-100 levels (e.g., VCO output). In the case of excessive distortion levels and simultaneous self-oscillation (sine oscillator), the self-oscillation will start to decline. This can also be implemented for additional stylistic means.

In combination with the A-135 voltage-controlled mixer and the A-144 morph controller, a filter with a voltage-controlled slope of 6 ... 48 dB can be achieved.

• Low-pass: 6 / 12 / 24 / 48 dB
• Width: 12 HP / 60.6 mm
• Depth: 75 mm (measured from the rear side of the front panel)
• Power requirement: +40 mA (+ 12V) / -40 mA (-12V)

• Two voltage-controlled switches
• Voltages of -8V to + 8V can be processed
• Two LEDs
• Euro rack format
• Power requirements: +30 mA (+12V) / -10 mA (-12V)
• Width: 4 HP / 20.0 mm
• Depth: 30 mm (measured from the rear of the front panel)