via this auction
Tuesday, December 16, 2008
SEQUENTIAL CIRCUITS Prophet-600
images at this auction"Each voice consists of two VCOs, two VCFs, and two VCAs. Each of these components has its own independent ADSR envelope. Each Prophet-600 voice uses 2 sets of Curtis Chips for its architecture. The sound originates in a pair of Curtis 3340 VCOs, each with independent on/off switches for sawtooth, triangle, and pulse waveforms. VCO1 can be synced to VCO2. Both oscillators are set with a frequency knob that is notched in semi-tones, with a separate fine tune knob for VCO2. Portamento is adjusted by a single knob. The sound then passes through a pair of Curtis 3372 chips. Each 3372 contains a VCF, a VCA, and a separate volume control for mixing. The VCF is a resonant 24dB/octave filter, with its own ADSR and knob for frequency. The frequency knob is quantized into steps, not allowing you to change it smoothly. Key follow can be set to full, half or off. The LFO can modulate the oscillators (both at the same time), the filter frequency, and the pulse width on the oscillator."
Subscribe to:
Posts (Atom)
