Korg Concert C6500 is an 88-key home digital piano released around 2002. Key features include graded hammer-action keys, 64-note polyphony, and a built-in 20-watt stereo sound system.Core SpecificationsKeyboard: 88 graded hammer-weighted keys providing an acoustic-like touch.Polyphony: 64-note maximum : Around 8 built-in instrument voices including grand piano options.Pedals: Three integrated pedals (damper, soft, sostenuto) supporting half-pedaling.Performance and FunctionsLayer and Split: Layer function to combine two sounds simultaneously, plus keyboard split capabilities.Effects: Built-in digital effects like reverb and chorus.Metronome: Adjustable metronome for practice sessions.Amplification: Integrated 20W stereo speaker system.Connectivity: MIDI compatibility.