User Manual

4. ANALOG FOUR MKII SIGNAL PATH

OSCILLATOR 1

SUB OSC

OSCILLATOR 2 LADDER FILTER

MULTIMODE FILTER

VCA/PAN

SUB OSC

RIGHT

LEFT

OVERDRIVE

NOISE

GENERATOR

AM AND

SYNC MODES

4.1 ABOUT THE COMPONENTS

Both oscillators of each voice are analog. All their elaborate waveshaping abilities are completely analog,

with digitally controlled pitches. The noise generator is digital. The two ﬁlters and the overdrive circuit

between them are fully analog. The ampliﬁers are analog. The envelopes and LFOs are digital. They are

designed for maximum eciency and versatility.

4.1.1 COMMENTS ON THE SIGNAL PATH

The signal path from the oscillators to the audio outputs is completely analog. The signal path from the

external inputs to the audio outputs is also fully analog. The digital send eects are parallel to the main

audio path, and the wet signals from the digital send eects are mixed with the dry analog signal before

the main output stage.

4.1.2 ABOUT THE OSCILLATORS AND FILTERS

The oscillators are designed and built from scratch, to obtain a lush sound and provide an array of

control features. The ladder ﬁlter utilizes discrete low-noise transistors, and the multimode ﬁlter uses

high-quality VCAs. The combination of tradition and innovation ensures a unique sound with a broad

range of possibilities. For more information, please see “APPENDIX E: ANALOG FOUR MKII ARCHITEC-

TURE” on page 104.