Intellijel Dixie II+ (LMS EE Excerpt)

Intellijel Dixie II+ (LMS EE Excerpt)

A lot of people get into modular synths because they prefer analog synthesis, so quite often users ask what analog VCO should they consider adding to their system. A very nice option is the Intellijel Dixie II+: it’s small (8hp), has excellent tracking including a 8-position octave switch, supports linear and exponential FM as well as PWM and hard sync, and has six different waveforms including sine, triangle, zig-zag (triangle meets square), sawtooth, square/pulse, and a sub-octave square, all on individual jacks. Sonically, it’s very bright and sharp, meaning it has a lot of harmonics present to play with (except for the sine, of course – indeed, it’s one of the cleanest analog sine waves I’ve measured).

In the movie below, I demonstrate creating a hard sync patch where the master is the single VCO that may be in a small core system or a semi-modular synth like the Moog Mother-32, and use that to drive a second oscillator such as the Dixie II+. For those who wonder exactly what’s going on when you use sync, I focus heavily on what’s happening with the waveform output. I also look at the Dixie II+’s unique Flip function, where the waveform reverses rather than resets when it received a sync pulse from its master, resulting in a new waveform with twice the overall cycle length of the master. This creates a sub-octave sort of feel compared to normal sync:

 

This is one of four movies on the Intellijel Dixie II+ that is in my course Learning Modular Synthesis: Eurorack Expansion. The first one covers basic operation plus takes a listen to each of its waveforms; the second is the movie above; the third covers patching what I call “static” FM where the modulation ratio (pitch of the modulating oscillator relative to the carrier) and index (depth of modulation) are left untouched – the way to get good, tonal tracking with exponential FM, and the fourth covers dynamic FM where we play with the modulation pitch and depth.

Skills

Posted on

May 13, 2017

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