Choosing a sound module for keyboards pianos comes down to a practical question: do you want a focused piano companion, or a wider instrument library for varied parts? The V3 Sound Grand Piano Pro and V3 Sound Sonority Pro both connect to a MIDI keyboard, but they point toward notably different setups.
Quick verdict
Pick the V3 Sound Grand Piano Pro Sound Module when grand-piano-oriented sounds are the priority and a Very Good - Refurbished unit suits your setup. Choose the V3 Sound Sonority Pro Sound Module when you want a new module with a substantially broader collection of instruments and percussion. The Sonority Pro carries a $90 higher listed price, so its broader scope is the central reason to make the move.
Side-by-side essentials
| Detail | V3 Sound Grand Piano Pro Sound Module | V3 Sound Sonority Pro Sound Module |
|---|---|---|
| Listed price | $509.99 | $599.99 |
| Condition | Very Good - Refurbished | New |
| Onboard sound count | 56 sounds | 1,000 sounds |
| MIDI connection approach | USB MIDI and onboard MIDI input | USB MIDI and onboard MIDI input |
Where each module makes the most sense
Grand Piano Pro for direct control of a piano-focused rig. Its compact profile, master volume control, and reverb control make it a natural fit for someone who wants to shape a piano-based sound without adding an expansive sound library to the decision. The sustain pedal input also supports more expressive keyboard playing.
Sonority Pro for more layered and varied musical duties. The 256-voice polyphony, round-robin sample technology, Low Distortion Differential output, and tolerance to clock jitter give this module a feature set aimed at broader studio, performance, and recording use. It is the more appropriate direction when a single MIDI keyboard will be asked to cover many kinds of parts.
Product notes
V3 Sound Grand Piano Pro Sound Module
The Grand Piano Pro is the better match for a player assembling a straightforward piano-oriented MIDI setup. It supports USB MIDI as well as an onboard MIDI input, and its sustain pedal input gives a keyboardist an additional expressive control point. Master volume and reverb controls further suit situations where you want quick, direct adjustments at the module itself. Its compact profile is also useful for keeping a rig contained for practice, performance, or recording. The tradeoff is condition: this unit is listed as Very Good - Refurbished rather than new. Choose it when its grand-piano emphasis and hands-on control layout matter more than starting with the wider sound range of the Sonority Pro.
V3 Sound Sonority Pro Sound Module
The Sonority Pro is the more flexible choice for players who want a MIDI keyboard to access acoustic instruments, percussion, and additional sound categories from one module. Its 1,000 onboard sounds create far more room to move between roles than a piano-specific setup, whether you are building parts for practice, performance, or recording. USB MIDI compatibility, an onboard MIDI input, versatile output options, and a sustain pedal input give it the core connections needed to integrate with a keyboard-centered system. Its concrete limitation is the listed price of $599.99, the higher figure in this comparison. Select the Sonority Pro when sound variety is the deciding factor and new condition is important.
Final choice by use case
- Choose the V3 Sound Grand Piano Pro Sound Module for a MIDI keyboard setup centered on grand-piano playing, particularly if a Very Good - Refurbished module fits your preference.
- Choose the V3 Sound Sonority Pro Sound Module for a new-condition module intended to cover more than piano duties across practice, performance, and recording.
- Choose based on the $90 spread if both directions appeal: the Grand Piano Pro is the lower-listed option, while the Sonority Pro is positioned for the shopper prioritizing a wider sound palette.

