The Korg Nautilus-61 AT is a professional workstation keyboard that combines a powerful sound engine with a wide range of features and functionality. It features nine sound engines, including the SGX-2 Grand Piano, EP-1 Electric Piano, CX-3 Tonewheel Organ, HD-1 Analog Synth, MS-20EX Synth, PolysixEX Synth, AL-1 Analog Strings, MOD-7 Polysynth, and STR-1 Drum Synth. This gives you a vast palette of sounds to choose from, with everything from classic acoustic instruments to cutting-edge electronic sounds.

The Nautilus-61 AT also has a wide range of features to help you create and edit your music. It has a 61-key Real Weighted Hammer Action 3 (RH3) keyboard with aftertouch, a color touch screen display, and a 960 x 640 pixel resolution. The keyboard is velocity-sensitive and pressure-sensitive, so you can get the most expressive playing experience possible. The color touch screen display makes it easy to navigate the menus and edit your sounds. And the 960 x 640 pixel resolution gives you a clear and detailed view of your music.

The Nautilus-61 AT also has a number of other features that make it a powerful tool for music creation. It has a 16-track sequencer, a built-in arpeggiator, and a step sequencer. The 16-track sequencer lets you record and playback your music, while the arpeggiator and step sequencer can help you create complex and interesting patterns.

The Nautilus-61 AT also has a number of connectivity options. It has a USB port for connecting to a computer, an audio output for connecting to an amplifier or PA system, and a MIDI output for connecting to other MIDI devices. This gives you the flexibility to connect the Nautilus-61 AT to a variety of different systems and devices.

Overall, the Korg Nautilus-61 AT is a powerful and versatile workstation keyboard that is perfect for both live performance and studio production. It has a wide range of sounds, a variety of features, and a number of connectivity options. If you are looking for a high-quality workstation keyboard that can do it all, then the Korg Nautilus-61 AT is a great option.

Here are some additional details about the Korg Nautilus-61 AT:

• Sound Engine: The Nautilus-61 AT has nine sound engines, each with its own unique character. The SGX-2 Grand Piano engine is a recreation of the Korg Concert Grand EX piano, while the EP-1 Electric Piano engine is based on the classic Korg EP-101 electric piano. The CX-3 Tonewheel Organ engine is a recreation of the classic Korg CX-3 organ, and the HD-1 Analog Synth engine is based on the classic Korg MS-20 analog synthesizer.
• Keyboard: The Nautilus-61 AT has a 61-key Real Weighted Hammer Action 3 (RH3) keyboard with aftertouch. The RH3 keyboard is velocity-sensitive and pressure-sensitive, so you can get the most expressive playing experience possible.
• Display: The Nautilus-61 AT has a color touch screen display with a 960 x 640 pixel resolution. The display makes it easy to navigate the menus and edit your sounds.
• Features: The Nautilus-61 AT has a number of features that make it a powerful tool for music creation. It has a 16-track sequencer, a built-in arpeggiator, and a step sequencer. The 16-track sequencer lets you record and playback your music, while the arpeggiator and step sequencer can help you create complex and interesting patterns.
• Connectivity: The Nautilus-61 AT has a number of connectivity options. It has a USB port for connecting to a computer, an audio output for connecting to an amplifier or PA system, and a MIDI output for connecting to other MIDI devices. This gives you the flexibility to connect the Nautilus-61 AT to a variety of different systems and devices.