Korg CA50 Overview

The CA-50 Chromatic Tuner from Korg is an industry-standard tuner intended for use with classical instruments, but can also be used for ear training with the built-in "Sound Out" mode. The tuner has a precise 410 to 480 Hz calibration range and easily fits in a pocket or instrument bag, making it well suited for performances or rehearsals.

The needle-style meter and extra-large note readout improve visibility and make the tuner ideal for beginners, young players, or those needing visual aids. A detection range of A0 (27.50 Hz) to C8 (4186.01 Hz) and high-sensitivity internal microphone allow accurate note detection without an external mic, though contact mics are available separately. The meter scale of the CA-50 indicates pure major and minor third intervals, making it convenient for ensemble tuning of all kinds, from woodwinds to strings. Battery concerns are minimized by 135-hour runtime with use of two zinc-carbon AAA batteries.

Sound Out Mode

• Internal speaker emits a reference tone in the range of C4 (261.63 Hz) to C5 (523.25 Hz), allowing tuning by ear

Memory Backup and Auto Power-Off

• Stores the calibration and "Sound Out" mode settings when the power is turned off
• Auto power-off function automatically turns off the power after 20 minutes with no audio input
• Settings are initialized when batteries are replaced

Built-In Folding Stand

• Built-in foldable balancing stand, reducing chances of instability or falling due to vibrations or accidental contact