KORG CM-400 BK - Clip-on Contact Microphone for Tuners (Black)

KORG CM-400 BK - Clip-on Contact Microphone for Tuners (Black)

The Korg CM-400 BK is a piezoelectric contact microphone that attaches to the instrument and transmits its vibrations directly to the tuner . This provides a more accurate and stable reading than with the tuner's built-in microphone, especially in noisy environments or when practicing with a group. Its rubber-coated clip ensures a firm hold without leaving marks or damaging the surface, and the 3.5 mm mono mini-jack offers direct connection to KORG tuners and other models with this input (e.g., TM-70T ). With a maximum opening of 30 mm and a 1.5 m flexible cable, the CM-400 BK is a robust and lightweight solution for vibration tuning of wind, bowed, and plucked strings.

Main features

• Vibration pickup : piezoelectric element that sends the signal directly to the tuner for more precise tuning and resistance to ambient noise.
• Secure and gentle clamp : maximum opening of 30 mm with non-marking rubber interior ; reliable grip on wind chimes , violin/viola scrolls , or guitar, bass, and ukulele headstocks .
• Connector : 3.5mm mono mini-jack , compatible with tuners with microphone input (e.g., KORG TM-70T ).
• 1.5m cable with strain relief to withstand continuous use in class, rehearsal or on stage.
• Lightweight and portable : only 35g , fits in any case or sleeve.
• Finish : black (also available in white: CM-400 WH).

Product benefits

• Reliable tuning in any environment : avoids noise pollution and improves detection in orchestras, bands, or noisy rooms.
• Instrument protection : The rubber on the clamp protects the finish while maintaining a stable grip.
• Direct, universal connection : standard 3.5mm mono jack for current tuners; no power supply or special setup required.
• Comfort : long, flexible cable for placement in the instrument's best response area.

Use cases

• Brass and woodwind : Bell mount for stable readings during rehearsals and concerts.
• Bowed string : volute/pull attachment of the tailpiece to capture vibration with minimal ambient interference.
• Plucked strings : Attach it to the headstock of your guitar, bass, or ukulele for tuning in dressing rooms and on stage.

Frequently Asked Questions

• Is it compatible with my tuner? Yes, if it has a 3.5 mm mini-jack microphone input (e.g., KORG TM-70T ).
• Can it damage the instrument? No; the rubber inside the clamp is designed to leave no marks when used correctly.
• Does it include a tuner? No; the CM-400 BK is the contact microphone. The tuner is sold separately.

Description for projects

Korg CM-400 BK clip-on contact microphone, piezoelectric sensor; 3.5 mm mono mini-jack connector ; clamp opening max. 30 mm ; 1.5 m cable ; weight 35 g ; rubber-coated clip for a stable, non-marking hold; attaches to a bell (wind instrument), bowed string instrument, or headstock (guitar, bass, ukulele). Color: black (white version CM-400 WH).