Korg Volca Nubass Vacuum Tube Synthesizer

The Korg Volca Nubass Vacuum Tube Synthesizer is a unique analog bass synthesizer that combines classic analog sound design with innovative vacuum tube (Nutube) technology for rich, warm harmonic character and expressive bass performance. Its advanced oscillator and sub-oscillator circuits produce fat, thick tones that are perfect for electronic music producers, live performers, and synthesizer enthusiasts seeking deep basslines with distinctive warmth and grit.

At the heart of the Nubass is a vacuum tube oscillator and an overdrive circuit that delivers rich distortion and a dynamic sound palette. A transistor ladder low-pass filter shapes the timbre with classic responsiveness, while a flexible analog driver section adds warm saturation and depth. The integrated 16-step sequencer with motion sequencing, accent, slide, and transpose functions allows for expressive sequencing and performance creativity.

Key Features

• Analog synthesis with vacuum tube-based oscillator and sub-oscillator for warm, rich bass tones.
• Nutube technology enhances harmonic character and sonic depth.
• Classic transistor ladder low-pass filter for shaping dynamic bass sounds.
• Analog driver circuit with overdrive and tone control for added texture and grit.
• Built-in 16-step sequencer with motion sequence, accent, slide, transpose, and randomize functions.
• Sync In/Out and standard MIDI In for integration with other Volca units and external gear.
• Portable design with battery operation option for on-the-go creativity.

Technical Specifications

• Synthesizer Type: Analog synthesis with vacuum tube oscillator and sub-oscillator structure.
• Maximum Polyphony: 1 voice.
• Structure: VTO (vacuum tube oscillator and sub-oscillator), VCF, VCA, EG, LFO, Overdrive.
• Sequencer: 16-step with pattern chain and motion sequencing.
• Recording Patterns: 16 memory slots (factory preset included).
• Connectors: Headphones output (3.5 mm stereo), Sync In/Out (3.5 mm mono), MIDI In.
• Power Supply: 6 × AA alkaline or Ni-MH batteries, or optional KA-350 AC adapter.
• Battery Life: Approximately 8 hours (alkaline).
• Included Accessories: Six AA alkaline batteries, sync cable.

Product Dimensions

• Width: 193 mm / 7.61″
• Depth: 115 mm / 4.54″
• Height: 46 mm / 1.82″
• Weight: 370 g / 0.82 lbs (excluding batteries)

Applications

• Creation of deep analog basslines for electronic, techno, acid, and dance music genres.
• Live performance sequencing and pattern creation.
• Studio sound design for producers seeking unique analog textures.
• Portable music production with battery-powered operation.

The Korg Volca Nubass Vacuum Tube Synthesizer merges classic analog synthesis with modern vacuum tube innovation, delivering expressive depth, rich harmonic warmth, and powerful sequencing capabilities in a compact and portable design. It offers endless creative possibilities for bass synthesis in both studio and live performance environments.