* Roland Juno-106: This classic analog synthesizer from the 1980s is known for its warm and lush strings and brass sounds. It has a 6-voice polyphony, a built-in chorus effect, and a variety of other features that make it a great choice for creating orchestral sounds.
* Korg M1: This digital synthesizer from the 1980s is known for its realistic and expressive orchestral sounds. It has a 16-voice polyphony, a built-in effects processor, and a variety of other features that make it a great choice for creating orchestral sounds.
* Yamaha DX7: This digital synthesizer from the 1980s is known for its bright and metallic FM synthesis sounds. It has a 16-voice polyphony, a built-in effects processor, and a variety of other features that make it a great choice for creating orchestral sounds.
* Waldorf Blofeld: This modern digital synthesizer is known for its versatile sound engine, which can be used to create a wide variety of sounds, including orchestral sounds. It has a 25-voice polyphony, a built-in effects processor, and a variety of other features that make it a great choice for creating orchestral sounds.
It's important to note that while these keyboards can produce sounds similar to the Oberheim MC3000, they are not exact replicas. The sound of a particular synthesizer is influenced by a variety of factors, including the design of the synthesizer itself, the quality of the components used, and the settings that are used.