Sony IER-M9 In-ear Monitor Headphones

Faithfully Reproduce Every Performance

With a Penta Balanced Armature system including magnesium super tweeter, integrated magnesium inner housing and an optimized sound path, these stage monitor headphones faithfully reproduce even the most subtle sounds and emotions.

PENTA BALANCED ARMATURE SYSTEM FOR OPTIMAL STAGE SOUND

For clean high notes, natural tones and the pure emotion behind every performance, the IER-M9 has a Penta BA system including a magnesium diaphragm super tweeter. Sony's original T-shaped Balanced Armature directly drives the diaphragm for a more linear motion and clean, faithful high notes.

SONY'S ORIGINAL DESIGN BALANCED ARMATURE (BA) DRIVER UNITS

The unique T-shaped Balanced Armature directly drives the diaphragm for a more linear motion and clean, faithful high notes.

SILVER-COATED OFC

Silver-coated oxygen-free copper wire minimises resistance and signal-transmission loss. The result is less sound degradation, finer detail and smoother treble sounds.

SILK BRAID AND NON-MAGNETIC UNDERCOAT PLUG

The IER-M9 uses silk braid as a cable insulator. This fibre works as an absorber against vibration and prevents rustling or bumping noises when you touch the cord. The gold plating of the plug has a non-magnetic undercoat which transfers the signal preserving subtle nuances.

DETACHABLE CABLE

The cable is fully detachable so you can replace it if needed, or fine tune your monitor sound through a different cable.

PRE-FORMED EAR HANGER FOR EASY POSITIONING

The IER-M9 In-ear headphones stably fit your ears through the universally shaped ear hanger. With firm fit and optimal housing shape, each ear bud stays in the right position.

13 VARIATIONS OF EARBUDS

Our earbuds come in thirteen variations - six triple comfort and seven hybrid silicon. So you can find a snug fit for all kinds of ear shape. Combining hard silicone rubber and specially-developed formed silicone, they perfectly match sound with stability and are comfortable to wear for long lengths of time.

LIGHT, DURABLE MAGNESIUM OUTER HOUSING

Own the stage and the moment with the light, durable magnesium outer housing of the IER-M9 In-ear headphones. Stably fit and durable against knocks or accidents.

STABLE FIT

The IER-M9 are designed to stay firmly in place with a snug fit for all ear sizes. With firm fit and optimal housing shape, each earbud stays in the right position, even while moving on stage.

DISCOVER A NEW REALM OF MUSICAL EXPRESSION

On stage, the IER-M9 In-ear monitor headphones authentically reproduce raw emotion and musical nuance.