Korg SV1-73 (2009)

A 73-note stage piano with vintage-accurate sounds, real tube warmth, and immediate hands-on control.

Overview

The Korg SV1-73 is the 73-note version of the Korg SV-1 Stage Vintage Piano, introduced in 2009. Designed for retro enthusiasts and live performers, it delivers 36 meticulously sampled vintage keyboard sounds, from German and Japanese grand pianos to classic electric pianos, tonewheel organs, Clavs, and analog synths. Its entire front panel is live with clearly labeled knobs, making sound shaping immediate and intuitive—no menu diving. The SV1-73 is built for the stage, offering a portable, maintenance-free alternative to vintage instruments while capturing their authentic character.

Specifications

Key options	73 or 88 keys; SV1-73 is the 73-note version
Key action	Korg's RH3 Real Weighted Hammer Action with graded hammer response
Number of sounds	36 piano and vintage keyboard sounds
Sound categories	Grand Pianos, Electric Pianos (Tine, Reed, Plucked), Clavs, Organs (Tonewheel, Tube Console, Combo), String Machines, Synth Brass, Choir, and layered combinations
Amp modeling	Valve Reactor 12AX7 tube-driven amp modeling (6 models)
Effects chain	6 Pre-FX (Compression, Boost, U-Vibe, Chorus/Vibrato, Tremolo, Wah); 6 Modulation FX (Chorus, Phaser, Flanger, Rotary); 6 Reverb/Delay types (Room, Plate, Hall, Spring, Tape Echo, Stereo Delay); 3-Band EQ; Limiter
Inputs/outputs	Stereo 1/4" inputs and outputs, XLR balanced stereo outputs, headphone output
Included accessories	Damper pedal and music rack
Optional accessories	Assignable footswitch, assignable footpedal, collapsible black stand, rolling soft case
User interface	Direct-access front-panel knobs with illuminated LEDs; 8 Favorite presets savable via car-radio-style recall
Technology used	RX (Real eXperience) Technology with multi-velocity sampling including tine, key-off, damper, hammer, and cabinet resonance
Sustain pedal function	Wah effect controllable via sweep pedal (e.g., Korg EXP-2 or XVP-10)
Tap tempo	Includes tap tempo switch
Editor software	Adjustable via included computer editor/librarian software
Original price	$2700

Design

Housed in a sleek, curvaceous body, the SV1-73 features a front panel with rotary knobs that include illuminated LEDs for visibility on stage. The signal path is divided into six bypassable stages: Equalizer, Pre-FX, Amp Model, Modulation FX, Reverb/Delay, and Limiter. Korg's exclusive Valve Reactor circuitry uses a real 12AX7 tube to add warmth or grit, while the rotary speaker emulation is praised as one of the best available. The RX Experience sampling captures not just notes but mechanical nuances—key-off noise, hammer strikes, and cabinet resonance—for a three-dimensional, responsive feel.

Context

The SV-1 series was positioned as a direct solution for players seeking vintage keyboard tones without the cost and upkeep of original instruments. The SV1-73, along with the SV-1BK in matte black and the Limited Edition SV-1RV with red body and reverse-color keys, targets performers and retro enthusiasts who value authenticity, portability, and stage reliability.

Market

Priced at $2700 at launch, the SV1-73 remains a sought-after stage piano for players who value its hands-on interface, tube warmth, and vintage sound accuracy. Its build quality and real tube circuitry contribute to lasting appeal in the used market.