very underrated synthesizer - the presets are quite 80’s trying to do DX7 of the time ---but with the correct programming can sound huge fat and very vintage analogue --- I prefer it to the similar Rolands ---i.e. juno and jx3p. The resonant VCF filter is awesome and very expressive. No external effects ---just the pure sound of the korg---sometimes using the stereo chorous for sting like sounds --I find a mono out with no chorous best for punchy bass like sounds