Key Features
- Vactrol based low-pass gate and VCA
- Emulate West Coast plucks and rhythmic pulses
- DC-coupled inputs allow for seamless integration with your existing Eurorack synth
- Three modes to choose from between Low-pass, Low-pass + VCA, VCA
- Aggressive resonance control can transform the tone of your signal
Doepfer A-101-2 Vactrol Lowpass Gate Overview
The Doepfer A-101-2 Vactrol Lowpass Gate is a modular vactrol-based low-pass filter and VCA, designed to fit into your Eurorack synthesizer system. Inspired by vintage 292-style modules but keen to push the envelope, the A-101-2 offers attenuators for both CV and audio inputs in addition to a manual resonance control and dual-gate inputs, allowing you to switch the function of the module via the onboard toggle switch seamlessly.
The A-101-2 works by adding harmonic content to subharmonic frequencies whilst leaving softer higher register frequencies untouched. This provides you with a unique way to process the low-frequency content of your track without having to rely on subtractive synthesis. Ideal for adding thickness to weak pads or for taming harsh high-end harmonics in a sawtooth lead.
With both Audio in and CV in, the Doepfer A-101-2 Vactrol Lowpass Gate offers a tremendous level of flexibility to integrate into virtually any system. DC-coupled inputs can be used to attenuate DC signals down to lowest frequency of 50Hz .
Product Ref: 220469
Full Description
View Full DescriptionWhat is a vactrol?
In the design of the A-101-2, vactrol controls are used to determine the frequency response in Low-pass mode and the amplitude in VCA mode simultaneously. This single control is what allows the A-101-2 to be used as a combination of either 12dB low-pass filter, VCA or both together. Vactrols create a smooth and linear sound and behaviour, meaning you can drive both the resonance of your low-pass and the amplitude of your VCA and you won't distort or add unwanted saturation into your signal.
Flexible amplitude and resonance control
A mainstay in West Coast synthesis, vactrol low-pass gates start with a simple oscillator waveform, modulating it to alter the shape of the harmonics. Following this modulation is the filter with a low-pass gate and in the case of the A-101-2, an aggressive filter is applied with serious amounts of resonance to completely reshape the sound of your signal.
Controls
- F/A: Manual frequency/loudness control
- CV2: Attenuator for CV Input 2
- Level: Attenuator for Audio Input
- Resonance: Resonance control
- Function: Toggle between Low-pass, Low-pass + VCA, VCA
- LED: Control for frequency / loudness
- CV In 1: Frequency / loudness for CV input 1
- CV In 2: Frequency / loudness for CV input 2
- Audio in: Audio input
- Audio out: Audio output
- G1: Function control input 1
- G2: Function control input 2
Specifications
- Width: 8HP / 40.3 mm
- Depth: 50 mm
- Current:
- +20mA (+12V)
- -20mA (-12V)
- Product code:
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