Korg GA Custom Ultra-Precision Chromatic Tuner

Korg GA Custom Chromatic Tuner

The Korg GA Custom is a professional-grade chromatic tuner designed for guitarists, bassists, orchestral musicians, and acoustic instrument players who demand exceptional tuning precision and outstanding visibility. Combining ultra-high tuning accuracy with an innovative 3D visual meter, the GA Custom delivers professional performance in an ultra-portable, card-sized design.

Developed as an advanced addition to KORG's renowned tuner lineup, the GA Custom offers multiple display modes, high-sensitivity pitch detection, and versatile connectivity options, making it suitable for beginners and professional musicians alike. Its compact form factor and premium construction make it an ideal companion for practice sessions, studio recording, rehearsals, and live performances. :contentReference[oaicite:0]{index=0}

Ultra-High ±0.1 Cent Tuning Precision

The GA Custom provides professional-level tuning accuracy with pitch detection precise to within ±0.1 cents. This level of precision is typically found in flagship rack tuners and ensures that instruments remain perfectly intonated for studio recording and live performance applications.

• Ultra-high tuning precision of ±0.1 cents
• Suitable for professional stage and studio use
• Fast and stable pitch detection
• Ideal for precise instrument intonation

Innovative 3D Visual Meter Display

The standout feature of the GA Custom is its large three-dimensional visual meter. The advanced LED display offers exceptional visibility from multiple viewing angles, allowing musicians to tune quickly and accurately even under difficult lighting conditions.

• Large 3D visual meter display
• Exceptional readability in various lighting environments
• Enhanced visual feedback for rapid tuning adjustments
• Professional-grade display technology in a compact tuner

Three Selectable Display Modes

The GA Custom includes multiple meter modes that accommodate different tuning preferences and workflows. Musicians can choose the display style that best suits their playing environment and precision requirements.

• Regular Mode for conventional tuning indication
• Strobe Mode for highly accurate visual feedback
• Half Strobe Mode for a balance of speed and precision

Wide Detection Range

The tuner offers an extensive detection range, making it suitable for a broad variety of instruments beyond guitars and basses. Its versatile tuning capabilities make it useful in educational, orchestral, and professional performance environments.

• Detection range: A0 (27.50 Hz) to C8 (4186 Hz)
• Supports guitar, bass, orchestral, and acoustic instruments
• 12-note equal temperament scale
• Suitable for multiple tuning applications

Adjustable Calibration

The GA Custom allows users to adjust the reference pitch to accommodate different ensemble requirements and tuning standards.

• Calibration range: A4 = 436–445 Hz
• 1 Hz adjustment increments
• Supports alternative tuning references
• Ideal for orchestral and professional applications

Built-In High-Sensitivity Microphone

In addition to standard instrument inputs, the GA Custom incorporates a high-sensitivity microphone that enables tuning of acoustic instruments without direct cable connections.

• Integrated high-sensitivity microphone
• Suitable for acoustic guitars and orchestral instruments
• Supports wind and string instruments
• Compatible with optional KORG contact microphones

Compact and Portable Design

The GA Custom features a slim, card-style design that fits comfortably into gig bags, instrument cases, and accessory compartments. The rubberized exterior improves grip and durability while maintaining excellent portability.

• Ultra-compact card-type form factor
• Rubberized finish for secure handling
• Integrated tilt stand functionality
• Easy to transport and store

Long Battery Life

Powered by two AAA batteries, the GA Custom delivers extended operating time for rehearsals, practice sessions, and performances.

• Powered by two AAA batteries
• Approximately 50 hours of battery life
• Reliable operation for extended use
• Ideal for musicians on the move

Specifications

• Scale: 12-note equal temperament
• Detection Range: A0 (27.50 Hz) – C8 (4186 Hz)
• Detection Accuracy: ±0.1 cent
• Calibration Range: A4 = 436–445 Hz
• Input Impedance: 1 MΩ
• Connectors: INPUT and BYPASS (1/4-inch mono jacks)
• Power Supply: Two AAA batteries
• Battery Life: Approximately 50 hours
• Dimensions: 99 × 65 × 16 mm
• Weight: Approximately 83 g including batteries

Why Choose the Korg GA Custom?

The Korg GA Custom combines professional-level ±0.1 cent tuning accuracy, an innovative 3D visual meter, versatile display modes, and exceptional portability in one compact tuner. Whether you play electric guitar, bass, acoustic instruments, or orchestral instruments, it delivers fast, precise, and highly visible tuning performance that meets the demands of both beginners and experienced professionals. :contentReference[oaicite:1]{index=1}