Sony

Sony IERM9 In-Ear Monitor Headphones Black

Experience Sound As Never Before. Immerse yourself in a new realm of musical expression with the Sony IER-M9 in-Ear Monitor Headphones. Engineered with advanced audio technologies and premium components, these headphones deliver unparalleled sound clarity and precision. Specifications: Dr...

$1,399.97*
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*Price sourced from Amazon.com. Last updated:Sep 04, 2026.Price and availability are subject to change — details.

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Overview

Experience Sound As Never Before.

Immerse yourself in a new realm of musical expression with the Sony IER-M9 in-Ear Monitor Headphones. Engineered with advanced audio technologies and premium components, these headphones deliver unparalleled sound clarity and precision.

Specifications:

  • Drivers: Sony 5x unique balanced armature drivers
  • Diaphragm Material: Magnesium alloy
  • Terminals: Gold-plated
  • Frequency Response: 5 Hz – 40,000 Hz
  • Cord Length: Approx. 3.94 ft
  • Cord Material: Silver-coated OFC strands
  • Plug Type: L-shaped non-magnetic gold-plated stereo mini plug
  • Cord Type: Y-type

Key Features

5x Balanced Armature (BA) Driver Units

Magnesium alloy diaphragm super tweeter

Sony's original design BA Driver Units

Light and durable Magnesium alloy outer housing

Preformed ear hanger for stable fit

Magnesium alloy BA drivers for optimized sound path

4.4mm standard balanced connection

In the box: Triple Comfort ear buds: SS, S, MS, M, ML, L, Hybrid Silicone ear buds: SS, S, MS, M, ML, L, LL Clip Carrying case, Cable holder, Cleaning cloth, Cable clip

Specifications

Driver Units
5x Balanced Armature (BA)
Tweeter Material
Magnesium alloy diaphragm
Housing Material
Magnesium alloy
Connection
4.4mm standard balanced
Included Eartips
Triple Comfort (SS, S, MS, M, ML, L), Hybrid Silicone (SS, S, MS, M, ML, L, LL)
Included Accessories
Clip Carrying case, Cable holder, Cleaning cloth, Cable clip

Frequently Asked Questions

These headphones are equipped with 5x Balanced Armature (BA) Driver Units, including a magnesium alloy diaphragm super tweeter, for precise sound reproduction.
The outer housing of these Sony headphones is crafted from a light and durable Magnesium alloy, contributing to both comfort and longevity.
Yes, they feature a 4.4mm standard balanced connection, which can provide an enhanced audio signal for compatible devices.
The box includes a variety of Triple Comfort and Hybrid Silicone earbud tips in multiple sizes, a clip carrying case, cable holder, cleaning cloth, and cable clip.
They are designed with a preformed ear hanger, which helps ensure a stable and secure fit, especially during active use or extended listening.