Doepfer A123: Difference between revisions

The '''A-123''' is a [[voltage controlled]] (VCF) with a [[cut-off slope]] of -24 [[Decibel|dB]]/octave. The cut-off frequency determines the point at which filtering takes effect and can be controlled manually, or by voltage control (filter modulation, for instance by an [[LFO]]). Two CV inputs are available. [[Resonance]] (Emphasis or Q ) can be adjusted manually, or by voltage control (VCQ), right up to [[self-oscillation]], in which case it will behave like a [[sine wave]] [[oscillator]].<ref name="a123">[http://www.doepfer.de/a123.htm A-123 24dB High Pass (VCF4)] at Doepfer Musikelektronik</ref>

 

 

 

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[http://www.doepfer.de/a123.htm A-123 24dB High Pass (VCF4)] at Doepfer Musikelektronik