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The upgraded successor of our classic monitoring headphones

The SMB-02G is the successor of PHONON’s acclaimed SMB-02 headphones.

With a diaphragm made of Nomex, a material used in high-end speakers, the new SMB-02G delivers even more exquisite sound quality.

PHONON’s unique technology creates a natural, ultra-low frequency range and acoustic space. The free-edge structure of the diaphragm, with its high response and low energy loss, provides a frequency response and wide dynamic range that fully covers even high-resolution bandwidth.

Our tuning technology, meticulously cultivated, achieves exceptional acoustic balance regardless of genre.

The SMB-02G comes with a detachable cable. A semi-open plate (sold separately) is also available for listeners who want to enjoy both closed dynamic and semi-open modes with a single unit.

How to use

Connect to a music player and use.
The headphones are not distorted even when the volume is turned up, but please enjoy them at a moderate volume to protect your ears.



Be sure to use at a moderate volume that will not irritate your ears.
Please be careful not to pinch your fingers between the parts.
Do not disassemble or modify the product.
Do not give a strong shock.
Always handle the cord by the plug to prevent breakage and accidents.
In public places, please keep the volume down so as not to disturb other people.
The ear pads will deteriorate with use and storage, affecting the sound quality of the headphones. For best sound quality, we recommend that you replace the pads regularly.

SMB-02G Specifications

Type Sealed dynamic type / Semi-open (optional plate)
Driver Φ40mm
Sensitivity 101dB/mW
Playback frequency range 10 to 40,000Hz
Maximum input 1,000mW
Impedance 32 ohm
Weight 313g (not including cord and plug)
Plug Φ6.3 / Φ3.5mm gold-plated stereo 2-way plug
Cord length (connection method) Detachable 3m, single-sided (4-wire, LR independent ground connection)

Instructions for use

Connect to music player
Enjoy at an appropriate volume to protect ears



Always use at an appropriate volume that will not damage ears
Be careful not to catch fingers between the parts
Do not disassemble or modify
Do not drop or strike against hard objects
Hold the plug when handling the cord to prevent disconnection and accidents
Please be conscious of volume in public and do not disturb other people
Replace ears pads regularly to ensure best sound quality (ear pads deteriorate with use and storage)