Doepfer A-101-1

Vactrol Steiner Filter

  • In contrast to the original circuit, the A-101-1 vactrols are used instead of diodes as variable resistors for frequency control
  • 2 LEDs provide information on the currently set frequency and resonance
  • Width: 16 HP / 80.9 mm
  • Depth: 50 mm (measured from the rear side of the front panel)
  • Power requirements: +30 mA (+12 V) / -30 mA (-12 V)
7 customer ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
5 / 5.0
4 written ratings Read all reviews
Total
handling
features
sound
quality

Excellent addition or 1st filter

VinceJ, 15.02.2015
I'm a newbie to modular but already have an MFB low pass and wanted to expand my small setups reportiore with a different filter. After looking at all the Dopefer ones on offer and viewing a couple of you tube videos I opted for the A-101-1 Vactrol. So far it's been really great, very flexible and with a really nice soft round sound a little sem like to my untrained ears. Being able to feed the LP, BP and HP sections independantly is great. The cv inputs affect all three filter types equally but there is independant control over the output of each filter. I'd recommend the A-101-1 to anyone looking for an alternative to the standard LP filter and without the funds required for some of the more exotic offerings from other manufacters. I love it.
Helpful · Not helpful · Report review
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Total
handling
features
sound
quality

A filter with great character

26.06.2016
I love this module, and it's surprisingly versatile. The ability to input different signals to the LP, BP and HF inputs can lead to some really interesting sounds, although using them individually they also sound and work great. The filter itself has a very unique and warm character, the LP in particular has a lovely "fuzziness" about it. As with a lot of the Doepfer modules a bit of creativity will get a lot out of a very affordable module. I have had this module for about 6 months now and I am still enjoying experimenting with different modulation sources and combinations of inputted signal. A great character filter and great value for money.
Helpful · Not helpful · Report review
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Show variations of this product
Doepfer A-101-1
(7)
Doepfer A-101-1
to the product
138 €

Vactrol Steiner Filter In contrast to the original circuit, the A-101-1 vactrols are used instead of diodes as variable resistors for frequency control, 2 LEDs provide information on the currently...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-124 Wasp Filter SE
(25)
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-138s Mini Stereo Mixer
(5)
Doepfer A-138s Mini Stereo Mixer

Mini stereo mixer 4-in-2 mix module in Eurorack format, Four inputs with attenuator and pan control and two outputs 3.5 mm mini jack, Width: 8 TE

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-199 Spring Reverb Module
(38)
Doepfer A-199 Spring Reverb Module
to the product
118 €

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-110-1
(59)
Doepfer A-110-1
to the product
138 €

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-132-3
(21)
Doepfer A-132-3

Module Dual linear/exponential, VCA

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-185-2
(9)
Doepfer A-185-2

Precision Adder / Buffer 4 CV inputs (1x with controller, 3x without controllers), Power requirement: 10 mA, Dimensions: Width: 6 HP / 30 mm; Depth: 50 mm

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-180-2 Multiples
(53)
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:...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-140
(51)
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-119
(35)
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-151
(16)
Doepfer A-151

Quad Sequential Switch Module Electronic 4-position rotary switch, Trigger input, Reset input, 4 Inputs, 4 Outputs, Voltages of -8V to + 8V can be processed, Euro rack format, Width 4 HP, Depth: 35...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-118 Noise/Random
(44)
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
138 €
Free shipping incl. VAT
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Share this product
Your Contact People
Phone: +49-9546-9223-30
FAX: +49-9546-922328
Offers include 21% Belgium VAT and are valid as long as stocks last. Shipping costs to Belgium are 2,50 EUR, free shipping on orders above 49 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
Teenage Engineering PO-33 K.O. Zoom H1n Presonus Faderport 16 Harley Benton PowerPlant ISO-2 Pro RCF EVOX J8 Bose S1 Pro Battery Pack Beyerdynamic DT-880 Pro Black Edition Marshall DSL5CR Aguilar SL112 Ivory Teenage Engineering PO-35 speak LD Systems Maui 5 Go Harley Benton PowerPlant ISO-1 Pro
(1)
Recommended
Teenage Engineering PO-33 K.O.

Teenage Engineering PO-33 K.O., Micro-Sampler; Built-in Mic; 40 sec. sampling time; 8 Melody-Sample-Slots; 8 Drum-Slots; 16-Step Sequenzer; 16 Patterns; 16 Effects; parameter locks; Built-in speaker; 3.5mm audio I/O; Jam sync; Animated LCD display; Folding stand; Break away lock tab; Clock...

to the product
99 €
(1)
Recommended
Zoom H1n

MP3 / Wave Handy Recorder Genuine XY microphone configuration, 24-bit / 96kHz linear PCM, Built-in monitor speaker, Rubbersied surface, Input: 3.5 mm stereo jack for line signals and plug-in powered microphones, Automatic and manual recording level, Low-cut filter, Timestamp...

to the product
119 €
Recommended
Presonus Faderport 16

16-Channel DAW Production Controller 16 Professional, touch-sensitive 100 mm motor faders (Dual-Servo Drive Belt), High fader resolution: 10 Bits/1,024 steps, 85 Background and status illuminated buttons, 104 Controllable functions, 16 High-resolution LC displays as digital labeling fields, Timecode and...

to the product
999 €
Recommended
Harley Benton PowerPlant ISO-2 Pro

Multi-power adapter for effect pedals 8 isolated, filtered and short-circuit protected outputs eliminate noise and hum, High amperage for modern digital effects, LED monitoring at each output, Power supply with a 12V @ 2A DC power adapter (included), Output...

to the product
69 €
(1)
Recommended
RCF EVOX J8

RCF EVOX J8, active 2-way-Array-PA-system containing: 8 x 2" Fullrange Speaker, 12" Bassreflex-Subwoofer, 2.5" v.c., 1400 Watt/Peak, 128 dB max SPL, 40 to 20000 Hz, DSP processing, Jack/XLR input, Soft limiter, incl. distance pole and cable, weight: 23,8 Kg, optinonal...

to the product
999 €
(1)
Recommended
Bose S1 Pro Battery Pack

Bose S1 Pro Battery Pack, rechargeable lithium-ion battery for Bose S1 Pro, up to 6 hours charge time, with Quick Charge feature, easy to Install into the dedicated compartment on your S1 Pro for secure and reliable use

to the product
145 €
Recommended
Beyerdynamic DT-880 Pro Black Edition

High-End Studio Headphones Dynamic, Half open, Circumaural, Frequency range: 5 to 35,000 Hz, Nominal impedance: 250 ohms, Sound pressure: 96 db, With 3 m spiral cable with 3.5 mm jack, Weight: 390 g with cable, 307 g without cable,...

to the product
185 €
Recommended
Marshall DSL5CR

Full tube combo amp for electric guitar Reissue series - authentic DSL sound, Power: Low power circuit from 5 W to 1 W, 2 footswitchable channels with classic gain and ultra gain, Equipment: 10" Celestion Ten-30 loudspeaker, Preamp tubes:...

to the product
489 €
Recommended
Aguilar SL112 Ivory

Bass cabinet Super Light, Equipped with: 1 x 12" neodymium speakers, Rated power: 250 watts @ 8 ohms, Dimensions (H x W x D): 377.80 x 482.60 x 457 mm, Weight: 11.4 kg

to the product
699 €
(2)
Recommended
Teenage Engineering PO-35 speak

Teenage Engineering PO-35 speak, Vocal Synthesizer/Sampler; Built-in Mic; 120 sec. sampling time; 16-Step Sequenzer; 16 Patterns; parameter locks; Built-in speaker; 3.5mm audio I/O; Jam sync; Animated LCD display; Folding stand; Break away lock tab; Clock + alarm clock; Battery powered...

to the product
99 €
Recommended
LD Systems Maui 5 Go

Rechargeable Battery Powered Compact Plug And Play Column System For monitoring and PA sound reinforcement, Discreet appearance for inconspicuous applications, Up to 6 hours of battery operation at 100% playback power and 10 hours at 50% playback power, Integrated...

to the product
745 €
Recommended
Harley Benton PowerPlant ISO-1 Pro

Multi-power adapter for effect pedals 8 isolated, filtered & short-circuit protected outputs eliminate noise and hum, High amperage for modern digital effects, LED monitoring at each output, Power supply with a 12V @ 2A DC power adapter (included), Output...

to the product
49 €
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.

Please leave a comment. Please enter your e-mail address.