The sounds on the Sequential Circuits Prophet 600 are definitely versatile to say the least. As is the case with all analog synthesizers, if you’re familiar with these sort of parameters you’ll catch on quickly, but if not you might want to do some research on synths in general. The sections of parameters that this synth has to work with includes two oscillators, an in depth filter, and an amplifier, as well as an LFO and a variety of other parameters on the outskirts of the main sections. In fact, that’s a main reason that I love both analog synthesizers in general and the Prophet 600 in particular. The configuration of the Sequential Circuits Prophet 600 definitely has a good amount going on, but those interested in analog synthesizers certainly know that this will be the case with many analog synthesizers. It’s got pretty standard connections in the back, and this is actually the first synthesizer to have MIDI capabilities! The keyboard spans about four and a half octaves and it has both pitch and modulation wheels. It’s got a lot of versatility, and is actually a bargain considering the price that these go for used. Debounce feature that prevents unintended retriggering caused by the old keyboard.Sequential Circuits’ Prophet 600 is a vintage analog synthesizer.Assignable, Random And Up/Down Arpeggiator.Plus/Minus setting for Oscillator Fine Tune and Filter Envelope amount for Poly Mod and Filter.Octave, chromatic and free Oscillator course pitch control.Synchronizing the arpeggiator to MIDI clock.Program change (PC) to choose current preset.Continuous Controllers (CC) of all sound parameters.Amp and Filter velocity sensitivity with an external keyboard controller.Modulation wheel intensity setting from Maximum to Medium to Minimum. Pitch Wheel reassignment to the VCF and Volume or off.ġ1.Pitch Wheel interval selection of plus/minus one octave, a whole tone, a minor third and a fifth.Mix Overdrive which now allows the output from both oscillators to drive the mix VCAs A and B harder as well as the Curtis 4 pole filter resulting in new sonic possibilities.Multiple keyboard modes including last/low/high note priority.A dedicated vibrato which can be controlled by the modulation wheel, or can start progressively after a fixed amount of time.A new LFO function generator with a wider range from one cycle every to about 60Hz with four new waveforms in addition to the original triangle and square including sine, random stepped, noise (like on the original Prophet 5, but nonperiodic) and sawtooth (ramp up).Faster, smoother amplifier and filter envelope generators supporting four different modes:.Forget those lousy stepped cutoff changes! Greater resolution of many of the sound parameters with an improved refresh rate that is making the instrument much more responsive.If you ever find yourself pining for the old sound of your Prophet 600, you can remove the Gligli upgrade and restore the Z80. Easy-to-install non-destructive firmware drop-in replacement of the new firmware. ‘Stable 2.0’ hosts the following improvements: The Prophet 600 ‘Gligli’ Firmware Upgrade rev. If you don’t want to lose your current presets, you can save them before installation and then load them again later. IC extractor now included to make the job even easier!Ĭomes with the original factory presets already pre-loaded. When my existing stock of GliGli upgrades has been depleted, this upgrade will no longer be available.Įasy to install, just remove the old Z80 processor from its socket and plug in the new board (installation and user instructions provided, no soldering required). The Teensy board used to make the GliGli upgrade has been discontinued by the manufacturer and genuine units are no longer available.
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