12 BA High-end Tunable In-Ear Monitor

    Four 31736 Balanced Armatures Hybrid Drivers & Two 29689 Balanced Armatures Drivers
    22955 Balanced Armatures Driver & 30019 Balanced Armatures Driver
    Two Versions Available, Main & Auxiliary Turners
    Medical-grade Materials 3D Printed Housing
    Silver-plated OFC Cable
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This Product is a Pre-order

Processing Time before shipping: 30 working days 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*.

A New Surprise From KZ

KZ, an eminent manufacturer of professional aural transducers, has recently launched a new offering - the KZ AS24 - which boasts an array of impressive attributes. The AS24 is available in two versions. The price difference between them is not that big. But if you are a person with your style preferences, its Tunable version is a very good one to try.

12 BA Drivers, This Earphone Has No Room for More

The AS24 has 12 BA drivers per side, which breaks the audio hardware ceiling. 31736 array-design BA is responsible for high and ultra-high frequency, providing smooth scalability and rich sound details. Customized 29689 BA is responsible for mid-frequency, bringing a clean vocal and transparency in mid-range. 30019 BA is responsible for high-frequency, providing a refined sense of layering and realistic on-site experience. The newly designed 22955 BA is responsible for low-frequency, bringing a powerful and resilient bass.

Precise Structure Like an Artwork

The traditional "u" shaped reed is designed for hearing aids, and its bending process may lead to poor stability and consistency. This time, KZ has designed a "trident" reed specifically for HiFi earphones, which is more accurately centered between the magnets. This design can enhance sound density, reduce distortion, and achieve better transient performance. Compared to all previously balanced armatures, the newly designed 22955 BA can deliver more powerful and resilient bass. The new generation 29689 BA can deliver spacious, elegant, and natural sound with superior treble extension.

Customized Tuning for More Flexibility

AS24 has dual tuners and 8 switches. There is one tuner on the top and one on the outside of the chamber, each with four level switches. By flipping the switches, you can freely adjust and control the low-frequency, medium-frequency, high-frequency, and ultra-high frequency of your earphone.

A Design that Combines Elegance and User Experience

The AS24 housing uses new manufacturing technology. Different from general 3D printing, the new generation DLP 3D printing technology can realize high-precision printing of complicated internal structures of earphone cavities, with the advantages of higher printing efficiency, more uniform illumination, and higher curing strength. At the same time, the lot cavity model, designed and finalized based on a large number of users' big data about the ear and ear canal, provides a comfortable wearing experience for listeners. It is made of a lightweight and skin-friendly resin material that remains comfortable to wear for long periods.

Product Model
AS24(Standard Version/Tunable Version)
Standard Version: 112±3dB
Tunable Version: 109±5dB
Standard Version: 112±3dB
Tunable Version: 109±5dB
Plug Type
Pin Type
Cable Type
Silver-Plated Cable
Cable Length

Coming soon...


Coming soon...

Customer Reviews

Based on 3 reviews
Tomas Pichardo

The only is the cable is too short beside that all is excellent

Mod Cruel
Interesting IEMs w/ Options (But not all Good) [Tunable Version]

I've been daily-driving these for the last month since receiving these and I have a few thoughts to share regarding them. I hate writing lengthy reviews so the following will be bullet points for easy reading. As always, these are my opinions and should be taken with a grain of salt (AKA biased).

The Good:
- Options galore. Some are better than others (spicy mids/highs depending on settings) [Expanded upon later]
- Flat Signature (slightly cold/bright) but can be tuned to be V/U shaped
- Decent ear fitment

The "OK":
- The included cable works but is flimsy and low core-count. You'll want to get an aftermarket cable.
- Included Ear-tips work but only 3 options are provided. None worked for me thus I purchased aftermarket ear-tips.

The Bad:
- While tunable, tuning these requires carrying a sim tool (too small for fingers unless dexterous)
- Most tuning options make the signature noticeably worse and spicy in mids/highs
- Low extension is noticeably lean and wimpy (All BA driver IEMs are known for this)

Let's talk specifically these tuning options. These 2 sets of 4 dip switches on each IEM. There's an included card in the package explaining what each one boosts (all/low/mid/high/etc). Tuning requires the use of a sim tool (one is provided). When testing the different tuning variations, I've found that the low boost switches are smooth bumps but due to there being no DD drivers, it sounds wimpy and unappealing while remaining clean and distortion-less. The mid switches work as intended and provided decent bumps in a good area to target mids increases (no muddy areas). The highs and super highs are bright when bumped and if sensitive to sibilance, you'll want to steer clear. The super highs are also unnaturally crisp that leads to early ear fatigue.

Let's be clear here, this is my opinion but I'd steer clear of the high/super high bumps and even the mid bumps. The low bumps are decent but again, somewhat lackluster.

Overall, these are a solid choice in this price bracket but the downsides to these plus the need to purchase aftermarket cables and ear-tips makes these a tough choice to recommend.

Wojciech Zielinski
Resolution is out of the world, I mean it!

I've owned so far only Moondrop Blessing 2 dusk, Thieaudio Oracle and this IEMs. My conclusion is I like most my KZ AS24 (darker) of all ever heard headphones, period. Tunning is a way of taste and here You may adjust it a little to Your preferences. What stole my heart, it is a resolution. It is something, which I haven't experienced before, so much...

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

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