MacBeth Studio Systems Elements

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MacBeth Elements Synthesizer Specifications:

• self contained synthesizer with built in touch capacitative keyboard
• 3 wide ranging voltage controlled oscillators and 1 vc low frequency oscillator/audio oscillator.
• vco1: 5 waveforms: ramp, square, enhance, triangle, sine.
◦ multi turn vernier dial tuning frequency: 1 hz ~ 20khz and beyond.
◦ volume output direct to vcf.
• vco2: 5 waveforms: ramp, square, enhance, triangle, sine.
◦ multi turn vernier dial tuning frequency: 1 hz ~ 20khz and beyond.
◦ volume output direct to vcf.
◦ shared enhance rate between vco1 and vco2, variable from slow ~ fast.
• vco3: 6 waveforms: ramp, square,triangle, sine, saw, s&h
◦ multi turn vernier dial tuning frequency: 0.01 hz ~ 20khz and beyond. transpose switch: lo, -2, -1, 0, +1, +2.
◦ cv on/off switch.
◦ vco3 hard synchronization to vco2.
◦ volume output direct to vcf or cross modulate vco2.
• temperature compensated vc low frequency oscillator/oscillator (vco4): 6 waveforms: ramp, square,triangle, sine, saw, s&h. frequency rate variable from slow ~ fast- approx: 0.01 hz ~ 20khz and beyond. cv on/off switch. fast ~ slow switch. s&h selector switch: noise source or vco3 source. mod vco3 potentiometer, mod vcf potentionmeter, audio to vcf potentiometer, large global modulation potentiometer.
• noise generator: white noise, pink noise. volume output direct to vcf and s&h circuits.
• external audio input amplifier: volume output to vcf or ring modulator.
• ring modulator: mc1469 based double balanced modulator. inputs: vco1 sine, vco2 sine or external audio input amplifier. volume output direct to vcf.
• voltage controlled filter/ resonator (vcf): self oscillating, 5 ‘rung’ diode ladder type approximating 32db/octave roll off slope. self correcting volume gain at high ‘q’ (response). cv/keyboard tracking switch: off (centre) half, full. vco3 modulation potentiometer, vcf eg sweep potentiometer. pure sine output at maximum resonance/reponse. targeted to ca3080 based voltage controlled amplifier (vca)
• vcf envelope generator: full attack, decay, sustain, release with long ~ short timing switch. vcf eg polarity switch: positive or negative going slopes. vcf eg > vco3 sweep switch.
• vca envelope generator: full attack, decay, sustain, release with long ~ short timing switch.
• tape delay simulator: input direct from vca. delay time potentiometer, delay modulation potentiometer, delay modulation control switch: vc lfo ~ kbd cv, delay repeats potentiometer, delay mix potentiometer. final output to spring reverberator circuit.
• spring reverberator: external spring line tank connect via ¼” jack socket, standard tank supplied: compact belton/accutronics bmn3bb2c1 for wall/under desk mounting. other tanks/accesorries can be used.
• keyboard: touch capacitive gold plated articulator allows 4 octave f ~ f chromatic span.
• control source via switch can be touch keyboard, midi or external cv/gate. keyboard can send 1v/octave and +12v gate signals from outputs on the rear of the unit to suitable ancilliary equipment, ie, external vc synthesizer/vc synthesizer modules.
• other controls: ultrabender: dynamic pitch bend + – 2 octaves either side with dead band in the centre of play. master tune- + – ½ octave either side. global portamento- applies to all cv controls.
• rear section interface: midi in/thru, cv in, gate in, vco1 cv in, vco2 cv in, vco 3 cv in, vcf cv in, external audio in, cv out, gate out, synth out, power in.
• dimensions: 19.2″ width, 15.1″ depth, 2.0″ height. with detachable rubber feet: 2.15″ height.