If you want an affordable and versatile synthesizer, choose the microKORG which has 37 keys and 128 user-rewritable programs. It’s good for beginners yet it can also satisfy the pros.
The R3, on the other hand is a full-fledged synthesizer that gives sophisticated synthesis and superior sound creation. In a small solid light body, it has 37 full-size velocity-sensing keys, together with two-timbre/eight-voice performance power. The R3’s is a great choice for all types of musical production.
RADIAS is loaded with 256 programs, 32 drum kits, and 16 formant motion sets, all created by an international team of synth experts.
Other releases are the Microkorg XL, Microx, R3, X50, Microsampler.