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Doepfer A-121-2

Doepfer A-121-2

Doepfer A-121-2; 12dB Multimode Filter; Eurorack Module; voltage-controlled multi-mode filter with a cut-off slope of -12 dB / octave; 4 Outputs are available simultaneous, each with different characteristics: low-pass, band-pass, high-pass and notch (or band reject); Resonance (Emphasis or Q ) can be adjusted manually, or by voltage control; Width: 8 TE / 8 HP / 40.3 mm; Depth: 50 mm; Current: +40mA (+12V) / -40mA (-12V)

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Customer ratings of similar items

Doepfer A-171-2 Rating from Doepfer A-171-2
Total
handling
features
sound
quality

Flexible multi tool for a great price

UglyKidJoe, 25.05.2014
The A-171-2 is based on the CGS75 from Ken Stone which is itself a licensed adaptation of the Serge DTG/DUSG and is licensed from both therefore the higher price in comparison to other Doepfer modules. As a multitool it can be used for various tasks apart from the obvious slew generation: LFO, Envelope Generator, Low-Pass-Gate, Envelope Follower, VC Pulse Delay, Sub-Harmonic Generator or Oscillator (not recommended for playing notes though as the tracking is not exactly 1V/Oct).
Apart from the exp/lin switch the curve can also be set with the CV pots when nothing is patched in their input jackets. It then works similar to the log/lin/exp pot of the Maths from Make Noise which is very handy for setting subtle responce characteristics.
Beware that in the standard configuration it outputs only +5V which you can set with a trimmer. So modules needing more juice might sound different or filters might not completely open. E.g. this is important when combining the module with Make Noise or Malekko modules. In this case set the trimmer appropriately or use an external amplifier (a real amplifier as most VCAs are just attenuators).
I also own a Maths but prefer the A-171-2 as an Envelope Generator because in my opinion it sounds better with more snap. Might be because I'm using Doepfer VCAs (A-131-3 with the CEM3360). It's also easier to use attenuated CV on the A-171-2 because you have to patch another channel (2 or 3) of the Maths (or Function) to get CV attenuation and as the cycle swith is a mechanical switch it's state doesn't reset when powering down the modular.
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Show variations of this product
Doepfer A-121-2
Doepfer A-121-2
to the product
121 €

Doepfer A-121-2; 12dB Multimode Filter; Eurorack Module; voltage-controlled multi-mode filter with a cut-off slope of -12 dB / octave; 4 Outputs are available simultaneous, each with different...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-110-1
(53)
Doepfer A-110-1
to the product
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Standard VCO for Modular System A-100Module A-110-1 (VCO) is a voltage controlled oscillator. The A-110-1 produces frequencies in a range of about 8 octaves, of which four waveforms are available...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-180-2 Multiples
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Doepfer A-180-2 Multiples

Passive Multi-Port Distributor 8x Interconnected jacks, Sockets are divided into 2x quadruple groups; but can also be modified to an eight-multiple (soldering bridge on the circuit board), Width:...

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Doepfer A-124 Wasp Filter SE
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Doepfer A-124 Wasp Filter SE

Wasp Filter Special edition, Black front, Yellow knobs

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-140
(43)
Doepfer A-140

ADSR Envelope Generator The module A-140 is a envelope generator and since it delivers control voltages, belongs to the modulation-modules. As soon as the ADSR is triggered at gate-input, it...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-138b
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Doepfer A-138b

Mixer ModuleModule A-138 is a four-channel mixer that can be used for mixing control voltages as well as for mixing audio signals. A separate attenuator is available for each of the four inputs. In...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-132-3
(19)
Doepfer A-132-3

Module Dual linear/exponential, VCA

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
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Doepfer A-100 LC1 Low Cost Case
Doepfer A-100 LC1 Low Cost Case
to the product
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Doepfer A-100 LC1 Low Cost Case for Eurorack Modules; build-in Power Supply A-100SSB (+12V/380 mA, -12V/380mA); 48 TE Version of the A-100LC3; build-in Bus Board with 8 Module connectors; Housing...

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  • Empty Rack, Or Housing: Yes
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Doepfer A-143-2
(18)
Doepfer A-143-2
to the product
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Quad ADSRThe module contains 4 independent ADSR envelope generators. Each sub-module has the controls Attack, Decay, Sustain and Release. With the 3-stage range switch, the desired time range can be...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-199 Spring Reverb Module
(31)
Doepfer A-199 Spring Reverb Module
to the product
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Spring Reverb ModuleDoepfer A-199 is a spring reverb module, which electronically simulates the reverb effect with the aid of spiral springs. Spring reverb systems have a characteristic sound...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-180-3 Dual Buffered Multiple
(6)
Doepfer A-180-3 Dual Buffered Multiple

Doepfer A-180-3 Dual Buffered Multiples, dual buffered 1-in-3 multiple to copying/buffering of control and audio signals, Width: 4 TE / 4HP / 20.0 mm

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-111-2
Doepfer A-111-2
to the product
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Doepfer A-111-2; High End VCO II / VCLFO; Width: 14 HP, Current: +70mA (+12V) / -50mA (-12V)

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-119
(28)
Doepfer A-119

External Input / Envelope FollowerModule A-119 is used to integrate external audio signals into the system A-100, and includes the components pre-amplifiers, envelope follower and a comparator. The...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-124 Wasp Filter
(35)
Doepfer A-124 Wasp Filter

Wasp Filter Module A-124 is a special 12 dB multimode filter using the "strange" filter circuit of the "EDP Wasp" (an analog synthesizer with black/yellow case built end of the seventies,...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-131
(24)
Doepfer A-131

VCA (Voltage Controlled Amplifier)The A-131 module is a voltage-controlled amplifier. An exponential VCA (A-131) is usually used for audio applications, while a linear VCA (A-130) is used for...

  • Module: Yes
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Doepfer A-118 Noise/Random
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Doepfer A-118 Noise/Random

Noise/Random Voltage Generator 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...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-106-5 SEM Filter
(24)
Doepfer A-106-5 SEM Filter

Filter 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) /...

  • Module: Yes
  • Empty Rack, Or Housing: No
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Doepfer A-157 Trigger Sequencer Subsys
(2)
Doepfer A-157 Trigger Sequencer Subsys
to the product
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Doepfer A-157 Trigger Sequencer Subsystem 1-2-3, contains: A-157-1 Trigger Matrix (8x16) + A-157-2 Output Module and A-157-3 Input Module, generate up to eight trigger signals controlled by a 8x16...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-135-1
(15)
Doepfer A-135-1
to the product
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Quad Linear VCA / Voltage Controlled Mixer Inputs: 4 x signal in, 4 x CV In, Outputs: Signal Out, 4 x Single Out, Dimensions: 18 HP / W HP / W x D: 90.3 x 45 mm

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-155
(17)
Doepfer A-155
to the product
299 €

Analog and Trigger Sequencer for Modular System A-100 The following functions are available for the two analog rows (rotary knobs): 8 Rotary potentiometers, Scale (stepless knob) on the lower...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-110-2
(11)
Doepfer A-110-2
to the product
119 €

Basic VCO for the A-100 modular system Voltage controlled oscillator, 3-Position toggle switch, Linear FM input and soft-sync input, Tune control range can be set between approx. 1/2 octave and 4...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
121 €
Incl. VAT plus 20 € shipping
Free shipping from 298 €
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

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item number 394744
sales unit 1 piece
available since July 2016
sales rank
in this category Rank 139
at thomann.de Rank 31623
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