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  • Vendor: Sony

Sony IER-M9 In-ear Monitor Headphones

$1,653.00 AUD
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Item specifics

Basic Info Type Headphone
Brand Name  Sony
Model Name IER-M9


General Headphone Type Closed, Penta Balanced Armature
Weight Approx. 9.0g


Body Form Factor In Ear
Colors Black


Specifications Driver Unit Penta Balanced Armature
20ohms(at 1kHz)
Frequency Response  5Hz-40000Hz
Sensitivities 103dB / mW


Connectivity Connectivity Wired
Cable type Detachable cable
Cable length 4.4mm
Connector L-shaped non-magnetic gold-plated stereo mini plug, L-shaped non-magnetic gold-plated balanced standard plug


More Info Cord Type Y-type
Cord Length  Approx. 1.2m, silver-coated OFC strands

Product description

The IER-M9 In-Ear Monitor Headphones from Sony are designed to stay firmly in place so you can capture all of the emotions you express in every performance. Built with five balanced armature drivers, a magnesium super tweeter, an audio-grade film capacitor for less distortion, and accurate tonal balance, they are designed for musicians to deliver a natural sonic experience in live stage and rehearsal applications.

The IER-M9's integrated magnesium inner housing reduces vibration and the pre-formed ear hanger provides easy positioning and stays fit in your ears. 3.5 and 4.4mm silver-coated, oxygen-free copper cables are included, each with a natural silk-braid cable insulator and a non-magnetic undercoat plug. The IER-M9 in-ear monitors deliver less sound degradation, finer detail, and natural reproduction of musical expression.

Discover a Realm of Musical Expression
On stage, the IER-M9 in-ear monitor headphones reproduce raw emotion and musical nuance.
Reproduce Every Performance
With a penta balanced armature system, including magnesium diaphragm super tweeter, integrated magnesium inner housing, and an optimized sound path, the headphones faithfully reproduce the subtlest sounds and emotions.
Penta Balanced Armature System
For clean high notes, natural tones, and pure emotion behind every performance, the IER-M9 balanced armature system drives the diaphragm for a more linear motion for cleaner high notes.
Balanced Armature Driver Units
The T-shaped balanced armature directly drives the diaphragm for a more linear motion and cleaner sound.
Magnesium Diaphragm Super Tweeter
The IER-M9 super tweeter diaphragm is made of a lightweight and rigid magnesium alloy and delivers a fast dynamic transient in performance. The BA unit design benefits from low resonance because of high internal loss. The internal wiring is upgraded with a silver-coated copper voice coil and gold-plated terminals. This helps reproduce sound without sacrificing micro signals, so pitch, harmonics, and emotion are portrayed.
Audio-Grade Film Capacitor for Less Distortion
The film capacitor in the crossover circuit delivers lower distortion and detailed sound. In addition, audio-grade solder helps to minimize any loss in the signal path.
Integrated Magnesium Inner Housing
The rigid housing keeps the balanced armature units firmly in place, helping to eliminate vibration to keep the sound clear and natural.
Optimized Sound Path
A wide and short sound path made of magnesium alloy reduces frequency peaks and dips. This provides a monitor sound you can rely on for critical listening accuracy.
Balanced Connection
A 4.4mm standard balanced connection cable separates left and right sound signals. This minimizes crosstalk that results in sound deterioration. Also included is a 3.5mm stereo mini cable.
Silver-Coated OFC
The silver-coated, oxygen-free copper wire minimizes resistance and signal-transmission loss. The result is less sound degradation, finer detail, and smoother treble sounds.
Detachable Cable
The cable is fully detachable so you can replace it if needed, or fine-tune your monitor sound through a different cable.
Silk Braid and Non-Magnetic Undercoat Plug
The IER-M9 uses silk braid as a cable insulator. This fiber works as an absorber against vibration and prevents rustling or bumping noises when you touch the cord. The gold-plated plug has a non-magnetic undercoat that transfers the signal with subtle nuances.
Preformed Ear Hanger
The IER-M9 in-ear headphones fit your ears through the shaped ear hanger so each earbud stays in the right position.
13 Pairs of Eartips
These in-ear monitors come with six triple-comfort and seven hybrid-silicone eartips. This allows you to find a snug fit for all kinds of ear shapes. It combines hard silicone rubber and specially developed formed silicone, which match the sound with stability and are comfortable to wear for long periods of time.
Light, Durable Magnesium Outer Housing
The IER-M9 housing offers a stable fit and is durable against knocks or accidents.
Stable Fit
Designed to stay firmly in place, the IER-M9 in-ear monitors have a firm fit for all ear sizes even while moving on the stage.

Shipping Information

MyMobile uses the services of the following carriers to deliver your products anywhere in Australia.

StarTrack / Australian Air Express

This courier service provides expedited deliveries to the majority of areas within Australia. We use this service for parcels shipped from our Australian-based warehouses (ie Regular Satchel, Express Satchel and Premium Express Box). A signature is required for deliveries and must be to a physical street address only (ie No PO Boxes). Tracking of parcels can be performed online (


This courier service provides expedited deliveries to the majority of areas within Australia. We use this service for parcels shipped from our international-based warehouses (ie International Shipping). A signature is required for deliveries and must be to a physical street address only (ie No PO Boxes). Tracking of parcels can be performed online (


This courier service provides expedited deliveries to the majority of areas within Australia. We use this service for parcels shipped from our international-based warehouses (ie International Shipping). A signature is required for deliveries and must be to a physical street address only (ie No PO Boxes). Tracking of parcels can be performed online (

 Australia Post

This postal service reaches every corner of Australia. We use this service for smaller items shipped from our Australian-based warehouses (ie Regular and Registered Post). If available, tracking of parcels can be performed online (

 Shipping Terms and Conditions:

  • All shipping fees listed are non-negotiable and non-refundable.
  • All delivery times are given as a guide only and are in no way guaranteed by MyMobile or the carrier.
  • Any failed deliveries due to inaccurate or incomplete shipping details provided by the buyer or unavailability of the receiver will incur a $25.00 re-delivery fee.
  • Once an item has been shipped, it is the buyer’s responsibility to liaise with the shipping carrier in relation to the delivery of their parcel.
  • Once a parcel is accepted and signed for, it will be deemed to be delivered and will no longer be available to claimed under transit insurance.
  • If a parcel is damaged in transit, the receiver must reject the delivery and advise MyMobile and the shipping carrier immediately.
  • If a parcel is lost in transit, the buyer must open an investigation with the shipping carrier.
  • MyMobile will only arrange replacement of the order once the investigation has been completed and providing the buyer selected transit insurance at the time of the initial purchase.


At MyMobile, we stand behind the quality of our products with confidence, offering a comprehensive warranty included in the standard purchase price. Here's an in-depth look at what our warranty entails:

  1. Australia-wide Warranty: Every product purchased from MyMobile comes with a warranty covering defects in materials and workmanship for a period listed below from the date of purchase. This warranty extends across Australia, ensuring our customers receive reliable support no matter where they are located.
  2. Second-Hand Devices: For those opting for second-hand devices, rest assured they are backed by a 6-month warranty. We understand the importance of providing assurance even with pre-owned products, ensuring your satisfaction and peace of mind.
  3. Australian Stock Devices: Devices sourced from Australian stock enjoy an extended warranty period of 24 months. We prioritize quality and reliability with locally sourced products, offering an additional level of assurance for our customers.
  4. Imported Devices: Imported devices come with a 12-month warranty, providing adequate coverage for products sourced internationally. While these devices offer the same level of functionality and performance, our warranty ensures your investment is protected against unforeseen issues.
  5. Repair Centers in Australia : MyMobile operates repair a center in Brisbane city, making it convenient for customers to access repair services when needed. Whether you're in Sydney, Melbourne, elsewhere, our service center ensures prompt and reliable assistance.
  6. Assessment and Repair Guarantee: We guarantee assessments within 5 days of receipt, often completing them in even less time. For repairs, we aim to have your device back to you within 30 working days, with most repairs completed in under a week. In the rare event that we're unable to repair your device, we'll provide a replacement phone to minimize any inconvenience.
  7. Return Postage Included: To streamline the warranty process, we cover the cost of return postage for items being sent back to us for repair or replacement. This service is available for customers within Australia, ensuring a hassle-free experience when seeking warranty support.
  8. Detailed Warranty Period: Our warranty period begins upon receipt by the first end-user and varies depending on the component of the device. For example, the mobile device itself is covered for the specified period, while consumable parts and accessories have their respective warranty durations.
  9. Transparency and Accountability: At MyMobile, we believe in transparency and accountability throughout the warranty process. We provide clear guidelines on warranty coverage, repair procedures, and customer responsibilities to ensure a smooth and fair experience for all parties involved.
  10. Continued Commitment to Quality: Beyond the warranty period, MyMobile remains committed to delivering high-quality products and exceptional customer service. While our warranty provides coverage for specified defects and issues, we strive to exceed expectations in all aspects of our business to earn your trust and loyalty.

In summary, MyMobile's extended warranty offers comprehensive coverage, prompt service, and ongoing support to ensure your satisfaction and peace of mind with every purchase. We stand behind the quality of our products and are dedicated to providing a positive experience for all our customers, regardless of the device type selected.

Important Information 

Regarding warranty provisions, the Warranty Period will adhere to legal constraints and will not be extended, renewed, or transferable with subsequent resale, repair, or replacement of the item, unless sold through an authorized MyMobile wholesale channel. Repaired parts will be warranted for the remainder of the original Warranty Period or for sixty (60) days from the date of repair, whichever is longer.

If a replacement handset is offered, every effort will be made to provide a handset of the same make and model. In cases where an exact replacement is not feasible, MyMobile reserves the right to replace the item with a functionally equivalent model at its discretion. Should the original product be unavailable, a similar product up to the same value may be provided, determined by the last retail price of MyMobile prior to the replacement. It's important to note that replacements are not redeemable for cash, and the warranty from the original item will transfer to the replacement. This warranty cannot be extended or renewed in any manner and will expire on the same date as the original warranty item's expiration.

Regarding shipping, we do not accept liability for any shipping costs to or from non-Australian or New Zealand locations. Furthermore, we do not assume responsibility for any loss or damages that may occur during the transit of sent items or any tax-related fees for international shipments.

Upon receiving authorization with an RMA code, customers are expected to return the item or the affected part (if applicable) to the nominated Care Centre or MyMobile designated service location before the Warranty Period expires.

When making a Limited Warranty claim, customers may be required to present the item (or affected part), the original proof of purchase, which should be legible and unmodified, indicating the seller's name and address, purchase date and location, and the product type, as well as the IMEI or other serial number. It's important to note that this Limited Warranty only extends to the original, first end-user of the item and is not assignable or transferable to any subsequent purchaser. Lack of proof of purchase may hinder your ability to demonstrate contracting party status. Subsequent purchasers are encouraged to seek clarification of their rights from the ACCC.

Additionally, it's important to note that this Limited Warranty does not cover user manuals or any third-party software, settings, content, data, or links, whether included or downloaded during installation, assembly, shipping, or at any other point in the delivery chain.

To the extent permitted by applicable law, the repairer does not warrant that any manufacturer’s software will meet your requirements, work in combination with any hardware or software applications provided by a third party, or that the operation of the software will be uninterrupted or error-free.

Furthermore, the warranty does not extend to normal wear and tear (including wear and tear of camera lenses, batteries, or displays), transport costs (unless specified in the warranty option), defects caused by rough handling, misuse of the item, or any other acts beyond the reasonable control of MyMobile.

This Limited Warranty also excludes defects or alleged defects where the item was used with, or connected to, products, accessories, software, and/or services not manufactured, supplied, or authorized by MyMobile, or was used otherwise than for its intended use. Additionally, defects caused by viruses from unauthorized access to services, accounts, computer systems, or networks are not covered.

Defects where the battery has been short-circuited or where the seals of the battery enclosure or cells are broken and show evidence of tampering are also excluded from this warranty. Similarly, defects where the battery has been used in items other than those for which it has been specified are not covered.

This Limited Warranty does not apply if the item has been opened, modified, or repaired by anyone other than an authorized service center, or if it is repaired using unauthorized spare parts. Additionally, it does not apply if the item’s serial number, mobile accessory date code, or IMEI number has been altered or made illegible in any way.

Furthermore, the warranty does not apply if the item has been exposed to moisture, dampness, extreme thermal or environmental conditions, corrosion, oxidation, spillage of food or liquid, or influence from chemical products.

Lastly, the use of non-standard subscriber identity modules (SIMs) immediately voids all warranty offered with the handset. This includes copied SIMs, dual or multi-SIM modules, SIM adapters/carriers, or the use of a micro-SIM in a standard-sized SIM slot.

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Sony IER-M9 In-ear Monitor Headphones

$1,653.00 AUD

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