Audio Ehhiku

High Performance 3DD + 4BA Hybrid Drivers in-Ear Earphone

    Unique Tuning Strategies
    2* 8.5mm Wrinkle Less Diaphragm DD,1* 8.7mm Titanium Diaphragm DD & 4 Custom BA Drivers
    Detachable MMCX Cable
    Ergonomic Design
    Made of industry standard medical-grade UV resin
    Handcrafted IEMs with a maximum of 2 pcs made per day
Product Price
Terms & conditions
This Product is a Pre-order

Processing Time before shipping: 15-20 working days, depending on the queue. avg.

This is a rough estimation. It may change without prior notice.

Free standard shipping to most countries

Free express shipping on orders over $270*. Enjoy free tax and duty paid to most countries. Please refer to our shipping FAQ to see if you apply.

Covid-19 Shipping Delay Notice

Shipping may be delayed due to covid-19 depending on your country regulations.
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Authenthic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

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Worldwide Free Shipping

We are located in China but send our products worldwide for free. T&Cs apply.


1 Year Warranty

We provide 1 year warranty for the all products except the cables*.

About Audio Ehhiku

Audio Ehhiku was founded by a freelance engineer who has built up a sizable reputation in the DIY in-ear monitor (IEM) community throughout Asia. By using advanced crossover designs that far exceed the primitive single-order passes that most other IEM’s utilize, Audio Ehhiku is able to achieve the ideal target tunings with extreme precision. With a vision for paramount sound quality and bespoke character, Audio Ehhiku is committed to hand-crafting each earpiece in small batches and continually innovating the field of in-ear monitors by implementing unique tuning strategies with the latest driver technologies.

High-end 3DD + 4BA Hybrid Configuration

Audio Ehhiku features dual 8.5mm wrinkle-less diaphragm dynamic drivers, one 8.7mm titanium diaphragm dynamic driver, and four custom balanced armature drivers to ensure that the sound is true to what it was intended to be. With the upgrade of the drivers, the sound quality is upgraded. These designs allow Ehhiku to have an ultra-wideband, analytical that feels nothing is lost, fast transients, and a powerful dynamic. Whether you are a performing artist, a studio engineer, or just a lover of great music, the Ehhiku could be one of your choices.

Each driver is tuned to perform at its optimal frequency range, minimizing the total harmonic distortion while maximizing the audio resolution that BA drivers are famed for. This tuning approach allows the sub bass and bass to be deep and impactful without hindering upon the mids, which is kept at a neutral position to emphasize a natural tone. The BA tweeters utilized for the trebles in the Ehhiku are modified from the famed ‘Harman Curve’ survey but go further to extend the treble decay in order to better highlight harmonics and details, while increasing the perceived “airiness” in the music. In short, the accuracy of Ehhiku ’s engineering means that its tuning is fit to amazing performers and listeners of every instrument and genre.

Quality Upgrade Cable

To best highlight the Ehhiku ’s impressive sound, it has been paired with an upgraded copper silver-plated cable. Featuring the MMCX connection, the cable can be easily swapped to prolong the longevity of the IEM, as well as allow customization of your setup. The MMCX connectors chosen for the Ehhiku have been tested to meet the highest quality standards available and will provide a secure fit for the lifespan of the IEM.

Bespoke Design

The Ehhiku is handcrafted using industry standard medical-grade UV resin that is popular amongst the biggest IEM brands internationally. The quality resin provides both durability and comfort to the Ehhiku, and its ergonomic shell design means you won’t even notice your IEM’s during long performing or listening sessions. Because every Ehhiku unit is handcrafted, each shell design is unique and bespoke.

4 balanced armature (BA) and 3 dynamic drivers
16 ohm
Medical-grade UV resin
Frequency response range

Coming soon...


Coming soon...

Customer Reviews

Based on 2 reviews
rock on !

Very different presentation from Hekilis which i found a hint hot on some songs in the treble area. Not the case here.
The presentation is "in your face" which give them body and weight. Drums thumps really good.
Ehhiku is my go to iem for everything with electric guitars . 90s rock shine on it. Metal is also very good on it.
The value is impressive, I own several 1k iems and Ehhiku sits between them.

The tuning lord strikes again

Short story long -
I have the Audio Hekili for comparison, notes on my review below
"...sound like a concert hall with main emphasis on the bass although mids and highs are still clear and non-sibilant...warm, v-shape sound signature ... Soundstage, tonality, and imaging are great. They're also not difficult to drive."

Ehhiku is a bit bigger(might not reflect clearly on the pics but you will feel the difference when you're A/B testing both)

stems are retained so no changes there, a minor gripe I discovered is that AZLA Sednas will lose grip over time and may come off more easily as you use them, probably due to my sweaty head. I've lost a pair after some months of daily use because the stem doesn't have an edge that the tips can grab on to so you need to use the tightest wrapping tips that you can possibly fit(Moondrop's tips are a good example, and maybe comply foams)

at the same volume setting, the playback is louder on the ehhiku so they're slightly easier to drive

more forward on the mids and highs, they essentially traded atmosphere/soundstage for clarity, and made the overall presentation more intense and in your face. I'd describe it as the Hekili has all of the players be spread apart and all of them are playing at a relatively similar volume, but you can hear the bass without trying to look for it whereas the Ehhiku sets the bassist and the kickdrums a bit towards the back, while the pianos, guitars and vocalist are front and center. You can still hear the bass but you'd have to focus. Setting the volume to where the bass matches the Hekili on this set will cause pain in the mids/highs. The clarity on the other hand is where this set shines. Micro instruments and chimes and flourishes are just there, no need to focus just to find them. They are similar timbre-wise so no discernable change over the quality of the vocals/strings other than the loudness.

they're less expensive than the previous iterations(this costs 100USD less, 199 vs 299) that I feel is due to the config of the drivers and maybe the cable as well(?) the tips and case are relatively similar(different color on the case and stock cable)no cable qc issues this time so that is a relief

Long story short - Conclusion
Absolute value for the money. They are great at the technicals-instrument separation is great, as well as no discernable distortion at high volumes. Soundstage is decent, and has a fairly neutral-bright sound signature which is weird considering the setup implies a bass-heavy config(3DD-4BA vs 1DD-7BA on the Hekili) so you may want to use a warmer source than a neutral one if you prefer a more relaxed sound which is also the case for me.

Our Shipping Process

If everything goes right our system will automatically generate your order and send you a confirmation email. If you don't receive the confirmation email please double-check that it wasn't automatically stored in your spam or promotions folder.

3 Working Days*

Most of the items you see are in stock and ready to be shipped after 3 working days. If you plan to order a custom (Design or Fit) product, a pre-order, or a made to order item processing times may change on item to item basis.

Standard Shipping
15 to 30 Days.

Standard shipping is offered free worldwide for orders under $269 USD (with some exceptions), but please consider that delivery times may vary considerably depending on your country, up to 90 Days.

Express Shipping
3-6 Working Days.

Most items over $270 include free express shipping (DHL or similar). If your order total is under $270 you can manually add Express Shipping at the checkout page for $15.00 - $35.00USD

World-Wide Shipping

Shipping FAQ

Which countries do you ship to?

We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.

We cannot ship to addresses that are "PO boxes or APO/FPO".

*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.
This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.

How much does shipping cost?

We have two shipping methods - Standard Shipping and Express Shipping.

Standard Shipping is free for most countries, while Express Shipping is 15-35USD depending on your country. If your order is over 270USD, Express Shipping is free*. 

*This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded.

Shipping fees exclude import taxes or processing fees that may be applicable for your country. Linsoul is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the two-way freight charges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.

Some parcels claimed to be “returned to the seller” may be destroyed by the post office or customs officers when buyers refuse to accept their parcels or fail to pay for their taxes. No refund will be processed for such cases.

Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Linsoul will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.

For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. 
Please contact us before placing an order, should you have any queries regarding shipping.  

How long does it take to receive the order after it is placed?

For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products. 

Customized items will take a longer time. Please contact our staff for more information.

On normal non-sale days, once your parcel has been shipped out:

  • For Standard Shipping, it takes about 2-4 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country, its customs and other factors.* The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to Express Shipping or keep the waiting time in mind.
  • For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.

*Note: Timings might be affected due to festive seasons or other unforeseen circumstances

What happens if the parcel has been shipped but not delivered?
  1. First, kindly contact your local courier using the local tracking number.
    If your parcel were to be in transit for at least 3 months, it may have been lost in transit.
    For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.
    For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.
  2. Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
    • Wrong address or phone number provided by recipient
    • Recipient was uncontactable when courier company contacted
    • Refusal to sign for the package by recipient
    • Lost or damaged parcel because recipient opted for “no-signature delivery”
    • Refusal to pay for the local tax/processing fee by recipient
    • Refusal to provide supporting documents for custom clearance by recipient
Who will pay for the import tax/custom fees

Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.

Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the two-way shipping fees incurred.

How do I get help for my order?

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team might not be available during non-working days and weekends, please place your order wisely.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email ( or website chat. We will help you with the changes if that could be done.

In general, upon receiving your parcel, please confirm the contents of the package and ensure that the package is in good condition before signing for it. All customers are strongly advised to take an unboxing video of their parcel and packaging when opening their parcels and products.

For faulty/missing items, please send an email to for after-sale services. The following details are required.
1) Send an email to with an appropriate Subject Title 
2) Provide your order number and state the issue clearly
3) Attach photos and videos to show that your product is faulty/missing. Shipping details on the parcel packaging have to be clearly visible.

If the photos/videos provided are insufficient to prove the stated issue, we will enquire more. Once the issue has been confirmed, we will arrange for a replacement, partial refund or a full refund (where applicable). For incorrect products, Linsoul reserves all rights in deciding whether you need to return the incorrect item or not. Please kindly contact us via email first. Our team aims to review your email within 3 working days.

For other queries, the fastest way to contact us is via our website or Discord

Linsoul Audio will not be responsible for parcels that have been damaged during the transit process.

Do I get tracking details for my order?

After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.

For more than 1 orders placed under the same account and shipping address, Linsoul will automatically combine the orders and ship them out via one tracking number. Should you have special requests to have the orders shipped separately, please kindly contact us via Discord or our website's chat. We will do our best to help.

What shipping companies do you use?

We collaborate with these courier companies:
Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
Express Shipping: DHL Express, FedEx and SF Express

Last updated: 1 November 2022

Audio Ehhiku
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