Item #1133438 Model #PB04BK

KORG Pitchblack Portable Polyphonic Tuner Black


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Fast and accurate polyphonic tuning

The pitchblack Portable is a guitar/bass polyphonic tuner that provides speedy and accurate tuning. The pitchblack Portable features a high-brightness LED display which provides excellent visibility, so that the pitch drift of each string is instantly and clearly visible. Korg's proprietary cable checker function is also built-in, letting you easily check for broken cables; making this unit the ideal choice for stage or studio use. The pitchblack portable lineup gives you a choice of three models: aluminum black, aluminum red, and aluminum silver. With an accuracy of +/-0.1 cents, the pitchblack Portable delivers a significant advance in guitar/bass tuning.
  • Tuning: 12 note equal temperament
  • Detection range: E0 (20.60 Hz) C8 (4186 Hz), sine wave
  • Calibration range: A4 = 436-445 Hz (1 Hz steps)
  • Detection accuracy: +/- 1 cent
  • Tuning Mode: Mono / Chromatic
  • Polyphonic / Guitar - Bass (Auto detection)
  • Display Mode: Regular / Strobe / Half Strobe
  • *0.1 cent indication when using strobe
  • Flat / Capo: Flat (b): Can tune down; up to five steps (Chromatic Scale)
  • Capo(#): Can transpose up; up to seven steps (Chromatic Scale)
  • Input impedance: 1 M Ohms (when tuner is on)
  • Current consumption: Maximum 130mA
  • Output current: Maximum 200mA
  • Connectors: Input /Check (mono 1/4" jack)
  • Output (mono 1/4" jack)
  • Cable Check (mono 1/4" jack)
  • DC IN (9V)
  • DC OUT (9V)
  • Power supply: AA Alkaline batteries (LR6) x 2
  • Optional AC adapter (9V)-ready
  • Battery life (Tuner on, Polyphonic tuning mode):
  • Approximately 15 hours of continuous use with the tuner on (LR6, using Polyphonic input continuously, Regular meter)
  • Dimensions (W x D x H): 6.34 x 2.36 x 1.30" (including rubber feet)
  • Weight: 268 g / 9.45 Oz. (including battery)
  • Accessories: AA Alkaline batteries x 2 for verifying functionality
  • Options: AC adapter (9V)


  • Large, high-brightness LED display providing excellent visibility
  • Rapid and precise polyphonic tuning, with the tuning of all strings visible at a glance
  • String Seeker function
  • Three meter display modes: regular, strobe, and half-strobe
  • Ultra-high precision tuning of +/-0.1 cents (when using strobe meter)
  • Ideal for "floating tremolo systems"
  • Korg's proprietary automatic guitar/bass (4-6 string) detection
  • Flat (5 Semitones), Capo (7 Semitones), and Drop-D tunings are also supported
  • Cable Checker warns of broken or shorted cables
  • Buffered output minimizes any change in audio quality
  • Mute function lets you tune silently
  • Cascade-connectable DC out
  • Slim horizontal body fits anywhere
  • Three choices of color: aluminum black, aluminum red, and aluminum silver