The Hammond SK Pro 61 is a professional-grade digital keyboard designed for serious performing musicians, keyboard players, church musicians, and recording artists.

It combines the legendary sound of Hammond tonewheel organs with acoustic piano, electric piano, orchestral instruments, and analog-style synthesizer sounds in one versatile instrument.

Unlike a conventional keyboard, the SK Pro is built around real-time performance control, allowing musicians to change sounds, adjust drawbars, layer instruments, and shape tones while playing.

The four sound engines

The biggest attraction of the SK Pro is its four independent sound sections.

1. Hammond Organ Engine

This is the heart of the instrument.

• Authentic Hammond B-3-style tonewheel sounds.
• Nine assignable drawbars for shaping organ tones.
• Classic jazz, gospel, blues, rock, and soul organ sounds.
• Vintage transistor organ sounds.
• Classical and theater pipe organ sounds.
• Digital Leslie rotary speaker simulation.
• Vibrato, chorus, and overdrive effects.

The organ engine is derived from Hammond's flagship XK-5 technology.

2. Piano Engine

The piano section provides a collection of high-quality sampled instruments, including:

• Acoustic grand pianos.
• Electric pianos.
• Classic keyboard sounds.
• Different piano tonal characteristics.

It is useful for ballads, pop, jazz, worship music, and studio recording.

3. Ensemble Engine

This section expands the keyboard beyond traditional organ and piano sounds.

Available instrument families include:

• Strings and orchestral strings.
• Brass instruments.
• Saxophone and reed sounds.
• Choir and vocal textures.
• Percussion.
• Synthesized ensemble sounds.

This makes the SK Pro particularly useful for covering multiple musical roles in a live band.

4. Mono Synth Engine

The analog-modeled synthesizer allows you to create classic electronic sounds.

Features include:

• Six oscillator configurations.
• Adjustable filters and resonance.
• Pitch and amplitude envelopes.
• Modulation capabilities.
• Classic analog-style bass and lead sounds.

It's especially useful for synthesizer bass lines, vintage electronic leads, and expressive solo sounds.