analog synthesizer of french manufacture cavagnolo. 1982: very rare ! only somes modeles was produced (around 80 or 100). exagone xm 64 in good state general a number of oscillators: 2+1 sub-oscillator. forms of waves: 3. 2 lfo, 1 adsr, 1 filter pb (24 db/oct), 64 presets. fully fonctionnal. no user manual, but veru simple to use. wonderful analog sound for a wonderful and rare instrument