The DX-7 has 6 operators per voice and 16 note polyphony. The DX-11 is a 4 operator synth but with 8 voice poly, but is multitimbral, where the DX-7 is monotimb

The DX-7 has 6 operators per voice and 16 note polyphony. The DX-11 is a 4 operator synth but with 8 voice poly, but is multitimbral, where the DX-7 is monotimbral. I think both have their advantages and most of the time 4 operators are enough. I’ve been looking for a Yamaha FS-1 which was the 1990s return to FM synthesis for Yamaha. It’s a rare-ish classic that I wish Yamaha would reissue.