Discount 5%

IER-M9 In-ear Monitor Headphones

Model: IER-M9
37,990 THB39,990 THB
1

1. Prices indicated refer to Suggested Retail Price which includes VAT and may change from time to time without prior notice.

Point: 1140
2

2. Points indicated is based on purchase amount and may change from time to time without prior notice.

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

    Questions about your Account

    Q. What is a Sony Store account?

    A. Your Sony Store account qualifies you for membership with the My Sony program, and upon purchasing THB 5,000 in a month, you will also automatically qualify for the Sony Store Members program. Your account is what you use to sign in to Sony online services such as buying products online, lodging a product support request, receiving emails, participating in competitions or events and providing feedback about your products or these services. It makes your experiences with Sony more personal and relevant to you.

     

    Q. How do I sign up for an account?

    A. It is a free and easy process. Simply visit our registration page, key in your particulars and click on “Sign Up” to register. Please ensure that we give absolute priority to the security of your personal and financial information. For more details, please refer to our Privacy Policy.

     

    Q. How do I log into my account?

    A. Please visit our sign in page, key in your registered email address and password, and you are logged in. Forgot your password? No worries, click the forgot password option and follow the prompts.

     

    Q. How can I change my registered email address?

    A. Please log in to your existing account and click on “Edit Profile” to update your details.

     

    Q. How do I reset my password?

    A. Forgot your password? No worries, simply visit our login page, click the forgot password option and follow the prompts to reset your password. You may also log in to your existing account and click on “Edit Profile” to reset your password.

     

    Q. What are some tips about passwords, privacy and safety?

    A. Here is some information about passwords and privacy.

    To keep your account safe, we recommend a series of password strengthening measures. Your password will need to be:

    • 8 to 20 characters long
    • One lower case letter
    • One upper case letter
    • One number
    • One special character
    • No spaces

    Tips for your personal safety:

    • Don’t use personal information or common words as a password
    • Keep your passwords secure

    Q. What can I save in my Account?

    A. Currently you can save your favourite details such as delivery addresses and wishlist to make your online purchase easier. If you do not mind filling in further details of your advanced profile settings, we would be better able to deliver a customized experience to you based on your needs & wants.

     

    Q. Can I save my delivery addresses?

    A. Yes! You can save your preferred delivery addresses in your account section. Prefer a gift to be delivered to your home address? Or, headphones delivered straight to your workplace? It's easy! Simply keep these details saved to your account to help you speed through the checkout process.

     

    Q. Can I save my contact details?

    A. Yes! Your own account section will keep all your details in one place, so you can find them at your fingertips. Should you need to edit any details, click on “Edit Profile” to update your details.

     

    Q. Is my information secure?

    A. Absolutely, best practices have been used to make sure your information is secure at all times. Kindly refer to our privacy policy for more details.

    Questions about your Orders

    Q. How do I know if my purchase has been confirmed?

    A. Upon confirmation of your order, you will receive a confirmation email with the order number. Should you not receive this email confirmation, please contact us for more assistance.

     

    Q. Can I see the status of my order in My Account?

    A. Absolutely! Simply log in to your account and check out your existing orders under the “My Orders” section. Orders that have been shipped out will have a tracking number available.

     

    Q. How do I track my order?

    A. When your order has been shipped out, you will receive an email with your tracking number and order number, so keep an eye on your inbox. You may also get a call from our delivery team. Should there be any questions, please contact us and provide us with your tracking and order numbers.

     

    Q. How do I add items to my cart?

    A. Simply find the product that you wish to purchase and use the "Add to Cart" button. Items that are sold out may not be able to be purchased and will display a "Sold Out" badge. You can also proceed to your cart and update the quantities, or remove items, from your order.

    Questions about Payment

    Q. What payment methods are accepted?

    A. To bring you the best online shopping experience, we offer multiple payment methods:

    • Credit Card
    • Debit Card
    • 0% Installment Payment Plan (applicable for SCB Bank, Krungsri Bank, KTC and Bangkok Bank currently)
    • iBanking
    • Bank Transfer

    Q. Will I receive communication of my payment status?

    A. An email notification on whether your payment was successful will be sent to you once your order has been confirmed and verified.

     

    Q. Will my credit card details be stored in My Account?

    A. As we give absolute priority to the security of your personal and financial information, we do not request for you to store your credit card details nor do we store them.

     

    Q. Which credit cards are accepted for payment?

    A. Sony Store, Online accepts all major credit cards supported by VISA and MasterCard.

    Questions about Returns & Refunds

    Q. Can I change/return my purchased product?

    A. Should you not be satisfied with the purchased product or you've received your order wrongly, please check out the returns process below:

    • All products must be purchased from Sony Store Online (Thailand). Receipt / tax invoice with the trackable order number is required.
    • Returns and/or exchanges are only available for products that are deemed to be damaged in transit (ie: before you received it). In case of defective or out of order goods, goods return must be done within 7 days of receiving. After 7 days, goods return will not be accepted.
    • Products must be returned in the original packaging, and should include any free gifts, warranties, manuals, and other accessories that came together with your item.
    • Shipping and handling fees cannot be refunded unless a replacement item is shipped out due to being damaged in transit, or faulty when opened.
    • In case of refund, it will be based on value of the product at the date of sale only (per the price on the receipt).

    REMARKS: The company reserves the right to refuse any goods return or refund if the case does not meet the above requirements.

     

    Q. How soon can Sony process my return request?

    A. You will receive a response from Sony within 3 working days.

     

    Q. How do I get a refund?

    A. If deemed faulty or damaged before you received your order, Sony will happily replace your purchase with a new item. No additional shipping charges will be added to your order and we’ll help arrange for the replacement to be shipped back to us.

    If you would prefer us to refund you, please contact us within 7 days after you've received the product to provide us the details for refund according to Sony's terms and conditions.

    For items where an incorrect colour, style or model has been delivered, as long as the item is in its original packaging, Sony will provide an exchange. No exchange will be issued until the item has been returned and inspected, according to Sony’s return policy.

     

    Q. What if I change my mind?

    Please choose carefully as refunds and returns are not provided for change of mind.

     

    Q. Will my redeemed points be refunded if I cancel my order?

    A. The redeemed points of your purchase will be fully refunded to your member account when the products and services are cancelled. Terms and conditions apply.

      

    Questions about Delivery

    Q. How much does delivery cost?

    A. For any purchase from Sony Store Online (Thailand) of 2,000 baht and above, delivery fee is FREE regardless of the size of the item, be it TV or an audio device.

     

    Q. Can I get my delivery left at my doorstep or hidden somewhere at the door?

    A. To ensure that you get the parcel safely and to avoid any damages to your parcel while it is left unattended, we require a signature when our friendly delivery team comes to your house.

     

    Q. Do you ship overseas?

    A. Shipping is only available to customers within Thailand only.

     

    Q. What is the expected delivery time?

    A. We are usually able to dispatch your items within 3 working days, if items are in-stock and fully paid. Orders received on Saturday and Sunday may take longer as it will only be processed on the next working day.

    During sale/promotion period, we may experience a huge influx of orders which may mean a delay. Please allow us to dispatch your items usually within 5 working days.

    REMARKS: Should payment not be cleared, there may be a delay on delivery of your order.

     

    Q. What notifications will I get about delivery?

    A. Tracking and order numbers will be provided to the email address registered in your account.

     

    Q. What should I do if I have not received my item?

    A. Please contact us and provide us with your tracking and order number.

     

    Q. I ordered multiple items, but I only received partially. Where are my other items?

    A. Please contact us and provide us with your tracking and order number.

     

    Q. Can I prearrange the date I want to receive my delivery?

    A. We apologize that we are unable to accommodate specific delivery time requests at the moment. If you are not available at the time of your delivery attempt, our delivery team will try to re-deliver to you at another time. However, in the case of more than 2 unsuccessful delivery attempts, shipping fee will be charged for the next attempt.

     

    Q. Do you deliver during weekends and holidays?

    A. Our delivery team may attempt deliveries during the weekend, and on some holidays. However, if you are not available at the given address on the weekend, please contact the delivery staff who would have contacted you before the parcel is delivered.

     

    Q. I have already ordered but need my order now, can Sony speed up the delivery?

    A. Unfortunately, we are unable to expedite the delivery of orders. However, we will in our best effort deliver your parcel within the indicated delivery time. 

     

    Q. Can Sony deliver the items to my office?

    A. Yes, we will deliver your order to the address you provided during checkout, regardless whether it is your home address or office address, as long as it is within Thailand.

     

    Q. What if I am not at home when the package arrives?

    A. If you’re unavailable to receive your package when it arrives, the delivery team will attempt to re-deliver it to you on the next working day. Please note that it is currently not possible to request for a specific delivery day and/or timing (even for re-deliveries).

     

    Q. My goods were damaged while being delivered, what do I do?

    A. We understand the disappointment in opening a new product only to see it broken. Please refuse to accept the product from the delivery staff immediately once you notice that the product packaging has some defects and please contact us right away.

    Questions about your Wishlist

    Q. What is my Wishlist?

    A. Your wishlist allows you to save and share your favourite Sony products to view and purchase later.

     

    Q. How do I view or use my Wishlist?

    A. In your account section, you will be able to save your favourite Sony products by clicking on the “heart-shaped” icon. This feature will make it easy to shop and come back to your favourites later.

    Questions about Products

    Q. How do I get my product repaired?

    A. You may return goods we have delivered to you for repair by contacting our service team here. We understand that sometimes large items (TVs & stereos) cannot be shipped easily so our service team will happily arrange an inspection.

    Sony will assess and repair products within a reasonable time. This time frame will be communicated via the service team but may vary due to part availability or fault diagnosis. Where possible, all fees (labour, freight, assessment) will be communicated for purchases not covered by manufacturer’s warranty. Where a fault is not found, there may be a service fee involved.

     

    Q. What happens to my data on a product that is repaired?

    A. Please ensure, where possible, all data is backed up on recordable media (flash drives, computer hard drives, camera memory cards, mobile phone contacts. Depending on repair requirements, some data may be lost. Sony is not liable for any data not backed up.

     

    Q. Are these products locally sourced, or parallel imported?

    A. All products sold through Sony Thai Co., Ltd. are authentic and sold directly from the manufacturer and are not parallel imports.

    Questions about Coupon Codes

    Q. Can I use multiple coupon codes on the same order?

    A. You are only able to key in one coupon code per order.

     

    Q. How long is the coupon code valid for?

    A. It varies. The expiration date of the coupon code will usually be indicated and communicated clearly.

     

    Q. Can I use a coupon code for my existing order?

    A. We are unable to apply coupon codes for existing orders. Coupon codes must be entered when you are at Payment step during checkout.

     

    Q. Can I redeem my Sony Store loyalty points together with the coupon code in the same order?

    A. Yes, you can redeem the Sony Store loyalty points together with the use of a coupon code for the same order. Before the checkout process, you will be asked to key in the number of loyalty points to redeem. Then during checkout, you will be asked to key in the coupon code.

     

    Q. Why do I get a message saying my coupon code is invalid?

    A. Each coupon code has its own terms and conditions. Please make sure your coupon code is still valid and meet the terms and conditions.

     

    Q. What happens if my coupon code has expired?

    A. Once the coupon code has expired, it is no longer valid.

    Other commonly-asked Questions

    Q. How do I close my account?

    A. By choosing to close your account you will terminate your account, membership, exclusive offers and will stop receiving communications with offers, product updates, news, information and member only event invitations.

    To terminate your account, log in to your current account and follow the prompts.

     

    Q. How do I unsubscribe?

    A. You can unsubscribe from all communications from Sony Thai Co., Ltd. (emails, SMS, direct mail etc.) by changing your subscription preferences here. You will stop receiving communications with offers, product updates, news, information and member only event invitations. Your order details, product registrations and account details will still be available to you.

  • Highlight

    Penta BA system

    Magnesium diaphragm super tweeter

    Sony's original design BA Driver Units

    Light and durable magnesium outer housing

    Pre-formed ear hanger for stable fit

    Driver Unit

    Penta Balanced Armature

    Frequency Response

    5Hz- 40000Hz

    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

  • Specifications

    Size & Weight

    Weight

    Approx. 11.0g

    General Features

    Headphone Type

    Closed, Penta Balanced Armature

    Driver Unit

    Penta Balanced Armature

    Impedance (Ohm)

    20ohms(at 1kHz)

    Frequency Response

    5Hz- 40000Hz

    Sensitivities (dB/mW)

    103dB / mW

    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

    Plug

    L-shaped non-magnetic gold-plated stereo mini plug, L-shaped non-magnetic gold-plated balanced standard plug

  • 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.

    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.

    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.

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

      Questions about your Account

      Q. What is a Sony Store account?

      A. Your Sony Store account qualifies you for membership with the My Sony program, and upon purchasing THB 5,000 in a month, you will also automatically qualify for the Sony Store Members program. Your account is what you use to sign in to Sony online services such as buying products online, lodging a product support request, receiving emails, participating in competitions or events and providing feedback about your products or these services. It makes your experiences with Sony more personal and relevant to you.

       

      Q. How do I sign up for an account?

      A. It is a free and easy process. Simply visit our registration page, key in your particulars and click on “Sign Up” to register. Please ensure that we give absolute priority to the security of your personal and financial information. For more details, please refer to our Privacy Policy.

       

      Q. How do I log into my account?

      A. Please visit our sign in page, key in your registered email address and password, and you are logged in. Forgot your password? No worries, click the forgot password option and follow the prompts.

       

      Q. How can I change my registered email address?

      A. Please log in to your existing account and click on “Edit Profile” to update your details.

       

      Q. How do I reset my password?

      A. Forgot your password? No worries, simply visit our login page, click the forgot password option and follow the prompts to reset your password. You may also log in to your existing account and click on “Edit Profile” to reset your password.

       

      Q. What are some tips about passwords, privacy and safety?

      A. Here is some information about passwords and privacy.

      To keep your account safe, we recommend a series of password strengthening measures. Your password will need to be:

      • 8 to 20 characters long
      • One lower case letter
      • One upper case letter
      • One number
      • One special character
      • No spaces

      Tips for your personal safety:

      • Don’t use personal information or common words as a password
      • Keep your passwords secure

      Q. What can I save in my Account?

      A. Currently you can save your favourite details such as delivery addresses and wishlist to make your online purchase easier. If you do not mind filling in further details of your advanced profile settings, we would be better able to deliver a customized experience to you based on your needs & wants.

       

      Q. Can I save my delivery addresses?

      A. Yes! You can save your preferred delivery addresses in your account section. Prefer a gift to be delivered to your home address? Or, headphones delivered straight to your workplace? It's easy! Simply keep these details saved to your account to help you speed through the checkout process.

       

      Q. Can I save my contact details?

      A. Yes! Your own account section will keep all your details in one place, so you can find them at your fingertips. Should you need to edit any details, click on “Edit Profile” to update your details.

       

      Q. Is my information secure?

      A. Absolutely, best practices have been used to make sure your information is secure at all times. Kindly refer to our privacy policy for more details.

      Questions about your Orders

      Q. How do I know if my purchase has been confirmed?

      A. Upon confirmation of your order, you will receive a confirmation email with the order number. Should you not receive this email confirmation, please contact us for more assistance.

       

      Q. Can I see the status of my order in My Account?

      A. Absolutely! Simply log in to your account and check out your existing orders under the “My Orders” section. Orders that have been shipped out will have a tracking number available.

       

      Q. How do I track my order?

      A. When your order has been shipped out, you will receive an email with your tracking number and order number, so keep an eye on your inbox. You may also get a call from our delivery team. Should there be any questions, please contact us and provide us with your tracking and order numbers.

       

      Q. How do I add items to my cart?

      A. Simply find the product that you wish to purchase and use the "Add to Cart" button. Items that are sold out may not be able to be purchased and will display a "Sold Out" badge. You can also proceed to your cart and update the quantities, or remove items, from your order.

      Questions about Payment

      Q. What payment methods are accepted?

      A. To bring you the best online shopping experience, we offer multiple payment methods:

      • Credit Card
      • Debit Card
      • 0% Installment Payment Plan (applicable for SCB Bank, Krungsri Bank, KTC and Bangkok Bank currently)
      • iBanking
      • Bank Transfer

      Q. Will I receive communication of my payment status?

      A. An email notification on whether your payment was successful will be sent to you once your order has been confirmed and verified.

       

      Q. Will my credit card details be stored in My Account?

      A. As we give absolute priority to the security of your personal and financial information, we do not request for you to store your credit card details nor do we store them.

       

      Q. Which credit cards are accepted for payment?

      A. Sony Store, Online accepts all major credit cards supported by VISA and MasterCard.

      Questions about Returns & Refunds

      Q. Can I change/return my purchased product?

      A. Should you not be satisfied with the purchased product or you've received your order wrongly, please check out the returns process below:

      • All products must be purchased from Sony Store Online (Thailand). Receipt / tax invoice with the trackable order number is required.
      • Returns and/or exchanges are only available for products that are deemed to be damaged in transit (ie: before you received it). In case of defective or out of order goods, goods return must be done within 7 days of receiving. After 7 days, goods return will not be accepted.
      • Products must be returned in the original packaging, and should include any free gifts, warranties, manuals, and other accessories that came together with your item.
      • Shipping and handling fees cannot be refunded unless a replacement item is shipped out due to being damaged in transit, or faulty when opened.
      • In case of refund, it will be based on value of the product at the date of sale only (per the price on the receipt).

      REMARKS: The company reserves the right to refuse any goods return or refund if the case does not meet the above requirements.

       

      Q. How soon can Sony process my return request?

      A. You will receive a response from Sony within 3 working days.

       

      Q. How do I get a refund?

      A. If deemed faulty or damaged before you received your order, Sony will happily replace your purchase with a new item. No additional shipping charges will be added to your order and we’ll help arrange for the replacement to be shipped back to us.

      If you would prefer us to refund you, please contact us within 7 days after you've received the product to provide us the details for refund according to Sony's terms and conditions.

      For items where an incorrect colour, style or model has been delivered, as long as the item is in its original packaging, Sony will provide an exchange. No exchange will be issued until the item has been returned and inspected, according to Sony’s return policy.

       

      Q. What if I change my mind?

      Please choose carefully as refunds and returns are not provided for change of mind.

       

      Q. Will my redeemed points be refunded if I cancel my order?

      A. The redeemed points of your purchase will be fully refunded to your member account when the products and services are cancelled. Terms and conditions apply.

        

      Questions about Delivery

      Q. How much does delivery cost?

      A. For any purchase from Sony Store Online (Thailand) of 2,000 baht and above, delivery fee is FREE regardless of the size of the item, be it TV or an audio device.

       

      Q. Can I get my delivery left at my doorstep or hidden somewhere at the door?

      A. To ensure that you get the parcel safely and to avoid any damages to your parcel while it is left unattended, we require a signature when our friendly delivery team comes to your house.

       

      Q. Do you ship overseas?

      A. Shipping is only available to customers within Thailand only.

       

      Q. What is the expected delivery time?

      A. We are usually able to dispatch your items within 3 working days, if items are in-stock and fully paid. Orders received on Saturday and Sunday may take longer as it will only be processed on the next working day.

      During sale/promotion period, we may experience a huge influx of orders which may mean a delay. Please allow us to dispatch your items usually within 5 working days.

      REMARKS: Should payment not be cleared, there may be a delay on delivery of your order.

       

      Q. What notifications will I get about delivery?

      A. Tracking and order numbers will be provided to the email address registered in your account.

       

      Q. What should I do if I have not received my item?

      A. Please contact us and provide us with your tracking and order number.

       

      Q. I ordered multiple items, but I only received partially. Where are my other items?

      A. Please contact us and provide us with your tracking and order number.

       

      Q. Can I prearrange the date I want to receive my delivery?

      A. We apologize that we are unable to accommodate specific delivery time requests at the moment. If you are not available at the time of your delivery attempt, our delivery team will try to re-deliver to you at another time. However, in the case of more than 2 unsuccessful delivery attempts, shipping fee will be charged for the next attempt.

       

      Q. Do you deliver during weekends and holidays?

      A. Our delivery team may attempt deliveries during the weekend, and on some holidays. However, if you are not available at the given address on the weekend, please contact the delivery staff who would have contacted you before the parcel is delivered.

       

      Q. I have already ordered but need my order now, can Sony speed up the delivery?

      A. Unfortunately, we are unable to expedite the delivery of orders. However, we will in our best effort deliver your parcel within the indicated delivery time. 

       

      Q. Can Sony deliver the items to my office?

      A. Yes, we will deliver your order to the address you provided during checkout, regardless whether it is your home address or office address, as long as it is within Thailand.

       

      Q. What if I am not at home when the package arrives?

      A. If you’re unavailable to receive your package when it arrives, the delivery team will attempt to re-deliver it to you on the next working day. Please note that it is currently not possible to request for a specific delivery day and/or timing (even for re-deliveries).

       

      Q. My goods were damaged while being delivered, what do I do?

      A. We understand the disappointment in opening a new product only to see it broken. Please refuse to accept the product from the delivery staff immediately once you notice that the product packaging has some defects and please contact us right away.

      Questions about your Wishlist

      Q. What is my Wishlist?

      A. Your wishlist allows you to save and share your favourite Sony products to view and purchase later.

       

      Q. How do I view or use my Wishlist?

      A. In your account section, you will be able to save your favourite Sony products by clicking on the “heart-shaped” icon. This feature will make it easy to shop and come back to your favourites later.

      Questions about Products

      Q. How do I get my product repaired?

      A. You may return goods we have delivered to you for repair by contacting our service team here. We understand that sometimes large items (TVs & stereos) cannot be shipped easily so our service team will happily arrange an inspection.

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  • Highlight
    • Highlight

      Penta BA system

      Magnesium diaphragm super tweeter

      Sony's original design BA Driver Units

      Light and durable magnesium outer housing

      Pre-formed ear hanger for stable fit

      Driver Unit

      Penta Balanced Armature

      Frequency Response

      5Hz- 40000Hz

      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

  • Specifications
    • Specifications

      Size & Weight

      Weight

      Approx. 11.0g

      General Features

      Headphone Type

      Closed, Penta Balanced Armature

      Driver Unit

      Penta Balanced Armature

      Impedance (Ohm)

      20ohms(at 1kHz)

      Frequency Response

      5Hz- 40000Hz

      Sensitivities (dB/mW)

      103dB / mW

      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

      Plug

      L-shaped non-magnetic gold-plated stereo mini plug, L-shaped non-magnetic gold-plated balanced standard plug

  • Reviews
    • Reviews
  • Features
    • 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.

      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.

      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.

  • Support

IER-M9 In-ear Monitor Headphones

37,990 THB 39,990 THB