Ricko-3A is described as "a homage to discrete-component analog synths of the 70s, in particular Roland's idiosyncratic SH-3A".

It features five mixable partials at octave intervals with adjustable waveshape and phase, sample-and-hold, continuously variable-strength filter, flanger and LFO modulation of pitch, filter, level and pan. It is well-tempered, with an adjustable root key. It can also simulate synths such as Roland SH-1000, SH-2000, SH-7 and Jupiter 4's four-note polyphony, as well as ARP-ish and Minimoog-ish sounds.

For its sound, think early Dr Who, early Human League, and early pipe organs.