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"The Analogue Solutions Leipzig-s synthesizer is a two-oscillator monophonic fully-analog MIDI synthesizer. Its signal path is not only analog, but so are its control functions... envelope, LFO, etc. Because it is a fully-analog synthesizer with circuit designs based on vintage analog synthesizers, it evinces the tone that is what you seek when you're looking for vintage analog sound.
In addition to amazing and fat tone, the Leipzig-s has a great set of functionality. The oscillators have independent glide and independent pulse-width modulation. There is a sub oscillator that can be generated by either oscillator. The filter is a 24db per octave low pass that seems like it was deeply inspired by Moog, and generates one of the thickest, richest filter tones in modern analog synthesizers. The filter can be controlled with either of the two envelopes. The modulation section is complex and allows each oscillator to be modulated by a number of sources, including different waveforms from the LFO, envelopes, the other oscillator, and MIDI. The filter can also be modulated by these sources, allowing a level of complexity that is very useful. Especially for creating drum sounds.
The Leipzig-s also has an analog sequencer that can be MIDI controlled. If you want true vintage analog sequencing sounds with an analog synthesizer, this is a quick and inexpensive way to get them! The sequencer is single-channel, but allows you to control the oscillators in independent amounts. The sequencer can also control the filter."
