Korg Pitchblack X Pro Chromatic Rack-Mount Tuner (PBXPRO) This is crucial for electric guitars with passive pickups, as long cables can cause tone loss, especially high frequencies. The ULTRA BUFFER boosts the signal to maintain clear audio quality, even in bypass mode, ensuring consistent sound with long cables or complex effects boards. Product Highlights: Rackmount tuner designed for professional studio or stage rack systems. Provides a larger, multicolored LED display for excellent visibility. Includes four meter display modes: regular, strobe, half-strobe, and focus Built-in ULTRA BUFFER maintains guitar signal strength over long cable runs Switch between Ultra Buffer mode and True Bypass mode for vintage pedal compatibility Compact and durable design for reliable performance on stage and in the studio Equipped with a built-in cable tester for easy troubleshooting Runs on standard 9V power supply or batteries for flexible power options Ideal for guitarists of all skill levels look