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IER-M9 In-ear Monitor Headphones

  • Penta BA system with super tweeter
  • Tuned to monitor the performance on stage
  • Light, durable magnesium alloy outer housing
Model: IERM9

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Price match requests are available for some Sony products sold at our online Sony stores (store.sony.com.au (Australia) and store.sony.co.nz (NZ)) or our Sony stores in Australia and New Zealand. If the online Sony Store product page or Sony Store staff at our stores indicate that a Sony product is available for a price match request, you may be eligible for price matching if it is:

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Fill out the form that can be found on selected product pages - unless excluded from our Price Match. If you require assistance, reach out to our Live chat. Please be prepared to direct our support staff to the ad or website that is displaying the current lower price you would like to match.

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Take your catalogue, flyer, printed email into one of our Sony Stores to request a price match. If your price match request is successful the Sony Store staff member will tell you how long the price match is valid for. This will vary according to product and time of request. If you do not choose to proceed with the sale within the time specified by the Sony Staff member, your price match will expire.

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    Customers may request a price match from Sony against the price being offered by another retailer for the same product, subject to these terms (“Terms”). In these Terms “Sony” means Sony Australia Limited (Australian purchases) or Sony New Zealand Limited (NZ purchases).

    1. Price match request is available for new Sony products sold by Sony that appear with the:
    a) “Request a Price Match” button on their product page (online purchases at store.sony.com.au (Australian purchases) or store.sony.co.nz (NZ purchases); or
    b) where indicated by Sony Staff (in store purchases at Sony stores in Australia and NZ).

    Products made available for price match are at Sony’s discretion and may change frequently.

    2. Sony may in its discretion choose to offer a price match for a current Sony product sold by Sony against a competing qualifying product (as defined below) when requested by a customer. Requests may be eligible for a price match if the below criteria are met. Sony will consider each case and communicate its result. This is not a price match guarantee. See this page for details on how to request a price match online or instore. Criteria:
    a) the product you are asking Sony to price match must be identical to the one being sold by Sony, including matching brand, model number and colour (“Qualifying Product”);
    b) the Qualifying Product must be in stock and available for sale (or available for pre-order online or in store) at a qualifying retailer (“Qualifying Retailer”). A Qualifying Retailer means:
    i) local retailers in Australia and NZ (including their online sales); and
    ii) marketplace sellers in Australia and NZ that source genuine Sony products; and
    c) the Qualifying Product must not involve one or more Exclusions, see below at end of these Terms for Exclusions. Exclusions may be updated from time to time.

    3. Other terms applicable to price match requests:
    a) Sony requires reasonable evidence to verify the price that the price match is being sought for. This may include a link to the advertisement, or a photo of the advertisement. The price must be current on the day of request and available to purchase (in stock) at that price;
    b) Price match may apply to multiple quantities of the same product at time of request to the limit set by Sony if the price match is offered (for example, if customer would like to purchase multiple quantities of the same product at the price match amount, Sony will indicate how many can be purchased at the price match price); and
    c) Australian purchases: We match store.sony.com.au on in store prices and in-store prices on store.sony.com.au. New Zealand purchases: We match store.sony.co.nz on in store prices and in-store prices on store.sony.co.nz.
    d) Price Match may not be valid in conjunction with any other offer or coupon. Check with Sony customer support (online purchases) or Sony stores in Australia or NZ at the time of making your price match request.

    4. If Sony approves the customer’s price match request the below terms apply. If Sony does not approve the customer’s price match request the customer will be informed of this. Terms that apply where price match is approved:
    a) Online purchases from store.sony.com.au (Australia) or store.sony.co.nz (New Zealand purchases):
    i) if price match is approved it will remain valid in the customer’s cart for the timeframe indicated by the Sony customer service team.
    ii) If customer chooses not to proceed with the sale within this time period, the price match price for the product will no longer apply and the price in the customer’s cart will revert to the current price for the product at store.sony.com.au (Australia) or store.sony.co.nz (New Zealand) at the time the price match expires.
    iii) If a customer removes a product subject to an approved price match from their cart, the product cannot later be added to the customer’s cart at the earlier price match price.
    b) In store purchases: if Sony approves the customer’s price match request, it will remain valid for the time period indicated by the Sony Store staff member. If the customer does not complete sale within this time period, the price match price will no longer apply.

    5. These Terms are governed by the laws of Australia (Australian purchases from Sony) and New Zealand (New Zealand purchases from Sony).

    Exclusions
    Current as at 1 November 2023
    1. Commercial quantities and pricing (price reduced due to volume or association).
    2. Stock Liquidations (goods sold by a business placed into receivership – closing down clearances).
    3. Prices where items are part of a package or bundle (Example: TV and Soundbar package, Sony will not match just the Soundbar at the reduced package price).
    4. Corporate offers where a valid account is necessary for eligibility or corporate (B2B) pricing or quotes.
    5. Price / advertising errors (technical issues, misquotes, or listings which are suspected to be incorrect).
    6. Parallel Import or Grey Market distributors.
    7. Interest free and finance offers where payment method is part of the price reduction.
    8. Offers and promotions where points make up payment.
    9. Seconds, refurbished or ex demo stock.
    10. Prices which Sony suspects are incorrect or are significantly below market / cost pricing.

    The above exclusions may not cover all situations. Other exclusions may apply and will be notified to you at the time of your request if applicable.

Recently purchased a Sony product and now seen it cheaper elsewhere? Get in touch with us at our customer support page to see if Sony, in their discretion, can offer you a partial refund. In addition, if Sony agrees to offer you a partial refund, then if we lower our in-store or online pricing during the return and exchange period, we will further match this lower price.
If you have any questions, please do not hesitate to reach out to our Live chat or give us a call. You can also speak to an assistant in-store for in-store price match requests.

Delivery Information

Please note, we cannot deliver to PO Boxes, Parcel Lockers or international destinations and currently authority to leave (ATL) at doorsteps or un-signed is not available.

Delivery Australia

Australia

Regular deliveries to NSW, QLD and VIC metro areas should be received within 1-5 business days. For ACT, SA, WA, TAS, NT metro and other rural areas, orders should be received within 1-7 business days.

Delivery New Zealand

New Zealand

Regular deliveries to Metro areas should be received within 1-5 business days. For rural areas and Stewart Island, orders should be received within 1-7 business days but may dependant on local carriers.

Delivery Costs

Delivery Fees

Some orders may be charged a small delivery fee as part of the convenience of getting your order delivered to your doorstep. See checkout for final costs.

Delivery Sale Periods

Sale Periods

Delivery delays may be experienced during sale periods due to high demand.

  • For items over 20kg, Sony (or an authorised logistics provider) will contact to arrange a delivery time. Certain factors such as size, shipping address or volume of deliveries may delay shipments.
  • For returns, see our returns information for more details.
  • Shipping is only available to customers within NSW, VIC, ACT, QLD, SA, WA, NT, TAS only for orders on store.sony.com.au and to North Island, South Island, Stewart Island addresses only for orders on store.sony.co.nz
  • TVs cannot be shipped to regional or remote addresses. An error message may appear during checkout if the TV in your cart cannot be shipped to your selected address. Please remove the TV or choose an alternate delivery address to continue.
  • Pick up and collection of orders are not available.
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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.

Faithfully reproduce every performance

Key Features

Discover a new realm of musical expression

Discover a new realm of musical expression

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

Faithfully reproduce every performance

Faithfully reproduce every performance

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

Penta Balanced Armature system for optimal stage sound

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

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.

Detachable cable

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

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

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

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

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.

Designed with professionals

Designed with professionals

We developed these in-ear monitor headphones cooperating with professional musicians and live-sound engineers. Their opinions are reflected in this product.

Magnesium diaphragm super tweeter

Magnesium diaphragm super tweeter

The IER-M9 super tweeter diaphragm is made of light weight and rigid magnesium alloy to deliver the fast dynamic transient of performance. The unique BA unit design also benefits from extremely low resonance thanks to high internal loss. Internal wiring is upgraded with a new silver-coated copper voice coil and gold-plated terminals, faithfully reproducing sound without sacrificing even micro signals so pitch, harmonics, and emotion are portrayed.

Audio grade film capacitor for less distortion

Audio grade film capacitor for less distortion

Our custom audio grade film capacitor in the cross-over circuit delivers much lower distortion. The audio grade capacitor of the IER-M9 delivers fine detail sound. Plus, audio grade solder also helps minimise any loss in signal path.

Integrated magnesium inner housing to reduce vibration

Integrated magnesium inner housing to reduce vibration

A highly rigid housing keeps the BA units firmly in place, helping to eliminate vibration and keeping sound clear without losing even the most minute detail in your sound.

Optimised sound path

Optimised sound path

A wide and short sound path made of magnesium alloy reduces frequency peaks and dips, to give a monitor sound you can rely on for critical listening accuracy.

Balanced connection available

Balanced connection available

The IER-M9 In-ear monitors come with a 4.4mm standard balanced connection cable which separates left and right sound signals completely, unlike conventional headphone cables where both channels share a ground wire. This minimises cross-talk that results in sound deterioration.

Silver-coated OFC

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

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.

Finer details and musical expression captured without loss

Silver-coated oxygen-free copper cables, a natural silk braid cable insulator with non-magnetic undercoat plug and a 0.17" standard balanced connection cable give less sound degradation, finer detail, and faithfully reproduced musical expression.
  • Silver-coated OFC

    Silver-coated, oxygen-free copper wire minimizes resistance and signal-transmission loss. The result is less sound degradation, finer detail, and smoother treble sounds.
  • Silk braid insulator and non-magnetic plug

    Vibration is absorbed by the silk braid cable insulator to minimize rustling when the cord is touched. A gold-plated plug with non-magnetic undercoat preserves signal purity.
  • Detachable cable

    The cable can be replaced if needed, or to fine-tune your monitor sound through a different cable.

Specifications

General Features

    • Sensitivities (dB/mW) 103dB / mW
    • Plug L-shaped non-magnetic gold-plated stereo mini plug, L-shaped non-magnetic gold-plated balanced standard plug
    • Impedance (Ohm) 20ohms(at 1kHz)
    • Headphone Type Closed, Penta Balanced Armature
    • Frequency Response (Hz) 5Hz- 40000Hz
    • Driver Unit Penta Balanced Armature
    • Cord Type Y-type
    • Cord Length Approx. 1.2m, silver-coated OFC strands, ear hanger, L-shaped non-magnetic gold-plated stereo mini plug, Approx. 1.2m, silver-coated OFC strands, ear hanger, L-shaped non-magnetic gold-plated balanced standard plug

Size and Weight

    • Width (cm) 9.00
    • Height (cm) 16.50
    • Weight (kg) 0.84
    • Carton Width (cm) 19.00
    • Carton Height (cm) 18.00
    • Carton Weight (kg) 1.95

Reviews

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Warranty

When you purchase a Sony product, you have the peace of mind in knowing that your product is covered by Sony's Standard Warranty provided by Sony Australia Limited (for Australian purchases) and Sony New Zealand Limited (for New Zealand purchases)

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