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Product information "Doepfer A-134-2 Dual VC Crossfader"
Dual crossfader module for voltage controlled morphing between two audio or CV signals. By setting a jumper you can determine if the module will react asymmetrically to positive CVs (eg. ADSR) or symetrically to bi-directional CVs (eg. LFO). Both crossfaders can be controleld with one common CV.
Like every crossfader also the A-134-2 is a combination of two VCAs working oppositely. Each ofthe A-134-2's sections has two jumper selectable modes which determine the inputs' behaviour:
In symmetric mode, when the jumper is not set, both have an initial amplification of 50% when there are 0V at the CV input. This means both VCAs can be either opened or closed by a CV and thus this mode is better for modulations with bipolar CVs (LFOs or joysticks)
In asymmetric mode, when there's 0V at the CV input one channel is fully opened and the other fully closed. The VCAs can react only to positive CVs like ADSRs, sequencers.
A normalization at the first crossfader's CV input allows for controlling the second crossfader with the same CV.
HE:
3
TE:
4
Depth:
45
Related links to "Doepfer A-134-2 Dual VC Crossfader"
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.
