It’s true bypass to ensure signal path integrity and when the tuner is engaged your output is muted. The EHX-2020 can be calibrated to a reference standard of 436 to 445Hz in 1 Hz steps so being able to tune to and play together with instruments that might not be at 440Hz is not a problem. It has a wide tuning range of B0-B7, plus three flat tuning modes so you can tune down ½ step, a whole step or a minor third.
• Chromatic pedal tuner with a tuning range of B0 to B7
• True bypass allows your input sound to be output with no change or coloration
• The pedal’s output is muted when the tuner is engaged which makes it ideal for live performance
• Accuracy: +/- 1cent
• Calibration: 436-445Hz (1 Hz steps)
• Three flat tuning modes