The black SP-280 from Korg is a digital piano that faithfully reproduces the sound and feel of a concert grand piano, while featuring a stylish design. Ideal for home or stage use, the 88-key Natural Weighted Hammer Action (NH) keyboard provides the same playing feel as that of an acoustic piano, with heavier action in the lower register, and a lighter response in the higher register. A Key Touch Control function provides three levels of adjustment to specify how playing dynamics will affect the output. Thirty sounds are included.

The SP-280 provides a playing feel close to that of an acoustic piano by switching between four piano samples according to the dynamics of the performance. From delicate pianissimo to dynamic fortissimo, the sound responds realistically and the "Grand Piano" sound reproduces the damper resonance that is heard when pressing the damper pedal of an acoustic piano. Authentic vintage electric piano sounds are period-accurate and reproduce not only the way in which the tone responds to touch, but also the subtle noises that occur when a key is released. Six varieties of electric pianos are provided.

A Layer Mode allows for playing two sounds together, while a Partner Mode divides the keyboard into left and right regions so that two people can play the same range of pitches. Two headphone jacks make it convenient for two people to play together. Three effects are available - brilliance adjusts the brightness of the tone, reverb simulates the natural ambience (reverberation) of a concert hall, and chorus adds spaciousness. And two onboard amplifiers each deliver 22 Watts of power with the built-in speakers capable of producing plenty of volume for a small live event without requiring a PA system.

The lightweight design makes transportation easy and the sturdy metal stand is light and easy to attach. A built-in metronome has adjustable time signature, tempo, and volume. Using the stereo line in jack allows various audio devices to be played through the speakers, for practice or rehearsal. MIDI input and output is implemented for either controlling external sound modules, or for using the piano as a 16-part multi timbral sound module. The included damper pedal will function as a half-damper pedal, allowing for varying the damper effect by how far the pedal is depressed.