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Product information "Doepfer A-135-5 Polyphonic Mixer"
The A-135-5 is a highly flexible module that Doepfer have designed for Polyphonic Mixing. On board are 12 VCAs and a suboctave generator.
The Polyphonic Mixer and Suboctave Generator has three channels A, B and C with 4 inputs each. Each of the three channels has its own level parameter, an input for control voltages, as well as an attenuator for the CVs and a mute switch.
The total of 12 VCAs accept audio, but also CV and allow a variety of applications. Four voices with three signals, complex polyphonic modulations, or even exciting feedback patching is possible here.
Doepfer have implemented a very useful feature: a suboctave generator. If audio goes into channel A, but channel B remains empty, suboctaves to the signals on channel A are generated here. Very useful if you don't have 12 but "only" 8 or 4 oscillators available. The waves generated here are plus waves at half the frequency of the waves on A. The pulse width is 50%.
The sum output provides all 12 signals, which could be used for paraphonic situations, for example. So you can send all VCA outputs into one filter or waveshaper. The 135-5 is a solid and versatile module that may also find a place in non-polyphonic systems.
Please note: The module should be used only with DC coupled VCO outputs (e.g. A-111-4, A-111-3). With AC coupled VCO outputs (e.g. A-110-1, A-110-2) a DC offset will occur at the outputs when the suboctave option is installed.
Features:
Mixer with 12 VCAs distributed in 3 groups
Level potentiometer, CV input and mute switch per channel
Suboctave generator on channel B
Sum output
External videos:
HE:
3
TE:
10
Depth:
55
Power consumption +12V:
50
Power consumption -12V:
40
Related links to "Doepfer A-135-5 Polyphonic Mixer"
WIth a long trajectory building synths, MIDI keyboards and designing bespoke devices for music pioneers Kraftwerk, Dieter Doepfer decided to design his own modular synthesizer in 1995 based on existing electrical and mechanical specifications of lab equipment he used during his years at university. The official presentation of the system at 1996 Frankfurt Musikmesse caught everyone by surprise and created lots of interest. After Doepfer published the specifications on his website, many instrument designers and engineers saw the potential of the new Eurorack format. Doepfer continues expanding their catalog of over 200 modules (and counting), operating from their modest offices in the outskirts of Munich.
