Analog piano from the '70s, sturdy and heavy (about 95lbs). Its name might have you think it's the smaller sibling of the CP70 and 80, but it isn't... This one doesn't have any acoustic mechanisms, only electronics. The sound is very typical, rather mellow like a Rhodes or a Wurlitzer, or a clavinet, but with its own peculiarities.

The piano has 2 voices with 4 presets, which can be mixed together (piano1, 2 and the two other harpsichord-like sounds), an adjustable tremolo effect on each voice (speed, intensity) and a pitch for each voice (chorus). Three stereo outs, voice 1, voice 2 and both mixed together.
The keyboard s heavy, the action and the response imply a very percussive sound (to exercise the fingers).
In principle, almost all cp30s I know buzz pretty loud, it's one of their main characteristics!!
Anyway, it's an old-time analog piano, very sturdy, with its own personality and very, very good sounds in the genres described above. A very good alternative for people who can't afford a Rhodes, a Wurli or a Clavinet, but who wish to have a nice vintage piano.
It's worth it alone for its price and sounds, but it also looks awesome!
Oh, yes, I forgot to tell you that it was a fav of very big names, like 'Herbie Hancock at the end of the '70s.