14.2mm Planar + PZT Driver Open Back In-ear Earphone

    Adopts Double-sided Array N52 Magnet Desgin and Ultra-thin Diaphragm
    Custom Made 14.2mm Planar Magnetic Driver
    12 Layer Double-Sided PZT Driver with Upgraded Thick Double-sided Conductive Silver
    Improved Open-Back Cavity Desgin for Less Hearing Fatigue and a better sound performance
    Optimized Interchangeable Connector Cable in OCC Silver-plated Coaxial Shielded Wires
Product Price
Terms & conditions

Subcribe to back in stock notification

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.
Free Shipping

Authenthic Products

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

Free Shipping

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*.

RAPTGO x HBB Collaboration IEM 

Raptgo has partnered with one of the legendary audio reviewers in the audiophile world, “Bad Guy, Good Audio Reviews” (also known as Hawaian Bad Boy), to upgrade the previous success-Hook-X in-ear monitor to achieve next-level ultra-performance. To obtain greater analytical power and sound dynamics, the new Hook-X has increased the size of super strong magnet application to optimize magnetic circuit with 7*2 dual array N52 magnetic circuit design. Thinner diaphragm is adopted for better low frequency dives and richer dynamics. Combined with HBB’s years of experience with thousands of HiFi audio products, the new Hook-X certainly will bring a storm to the hybrid driver world

Novel Concept, Precise Execution

The new Hook-X follows its predecessor with a hybrid in-ear monitor design utilizing the planar magnetic driver in combination with a piezoelectric (PZT) driver. These two driver types are among the most sensational driver technologies in the audio industry, and have never been utilized together in an IEM format. We took on this momentous concept, and through careful engineering and testing, have successfully created an IEM that encompasses the powerful characteristics of these drivers fashioned with tonal perfection. Unlike other IEM novelties that simply cram in hyped drivers, we are proud to achieve a product that is tuned to balance and allows the listener to both appreciate the acoustic superiority of these drivers as well as enjoy the music through their harmonious tonality.

Custom Made 14.2mm Planar Magnetic Driver

The planar magnetic driver utilizes a thin ribbon suspended between two powerful magnets through which electrical currents run. The advantage of a planar magnetic driver is the extreme responsiveness compared to dynamic or balanced armature drivers due to its lower mass and strong magnetic field. We manufactured our own large 14.2mm planar driver, which is driven by powerful N52 magnets. The precision of this driver allows incredibly punchy and impactful sub-bass response, as the ribbon is more responsive to transient signals. Furthermore, the full frequency range is effectively extended from 20Hz to 40kHz to produce an upper treble response previously unobtainable in an IEM. Internal housing structure design and acoustic damping system were carefully brought about to achieve a balanced target tuning, a rarity among IEMs that utilize the planar magnetic driver.

12 Layer Double-Sided PZT Driver & Upgraded Thick Double-sided Conductive Silver

The piezoelectric driver achieves enhanced treble response through vibration of piezo elements within the housing. In cooperation with an external team with military engineering backgrounds, we have designed a double-sided layering system consisting of 12 ceramic piezo elements that has been fine-tuned after more than 100 acoustic shock simulation experiments. Each of our PZT drivers undergoes 52 complicated processes during production, and is hand tested and paired. In addition to the planar magnetic driver’s extended treble response, our PZT driver adds an extra dimension of sonic resolution and air that is incomparable with typical balanced armature or even electrostatic drivers.

Improved Open-Back Cavity & PZT Acoustic Shock Drive Bracket Structure

For both tuning and acoustic properties, the new Hook-X adopts an open-back design. This allows the maximum amount of airflow to highlight the planar magnetic driver’s characteristics. Additionally, this opportunity opens up the soundstage compared to typical IEMs, mimicking the openness and realistic playback of open-back planar headphones. Finally, the open-back design prevents the buildup of pressure within the ear to reduce hearing fatigue. Moreover, the newly designed PZT acoustic shock drive bracket structure greatly avoid transmission loss and vibration to present a better sound performance. The housing of the Hook-X was software designed after a large number of simulation experiments to match the typical ear angle and wearing experience. Each unit is crafted from a high-precision 5-axis CNC to ensure uniformity of the acoustic chambers. From the housing design to the driver assembly, each aspect of the Hook-X is a demonstration of workmanship, engineering prowess, and acoustic tastefulness..

Optimized Interchangeable Connector Cable

The new Hook-X comes with a optimized modular connector cable terminated to 0.78mm 2-pin jacks. This means that you can simply swap out the connector between the 4.4mm and 2.5mm balanced and 3.5mm unbalanced jacks to use with any of your devices. This incredible design limits the need for bulky adaptors. The cable itself is made using OCC silver-plated coaxial shielded wires that enhance the transparency of the hybrid drivers.

14.2mm Planar driver+double-faced 12-layer PZT driver
Sensitivity (1KHz)
02dB±1dB SPL/mW
Frequency response range
Audio interface
0.78mm - 2.5mm/3 5mm/4.4mm
Earphone cable length
Nozzle diameter
About 5.2mm

Coming soon...


Coming soon...

Customer Reviews

Based on 4 reviews

So I have had this for roughly two months now, and can honestly say I am past the honeymoon period and my verdict has landed: These are spectacular.

SOUND: After being somewhat disappointed by the Blessing 2: Dusk, I set out to find a replacement with a tuning more to my liking. Traditionally I listen to a wide variety of genres, but generally I am a fan of rhythm based music, so the midbass tuck from the Dusk was a bit too analytical for my taste. These however are much more engaging and fun. Thanks to the planars, the bass is super fast, so even if there are a lot of things going on in the song, you can still hear all the details! This is my first dive into planar IEMs, but I do believe these hit the sweet spot of being able to appeal to a wide variety of people. The bass is never overbearing. Very fun listen!

GAMING: I also use these for gaming, and as Fresh Reviews (on YouTube) has stated, these are amazing for it! I gravitate towards these more often than my more expensive Moondrop Variations, both because the soundstage seems wider, so you get more immersed into the game, as well as being able to pick up more details compared with the Variations.They are also miles ahead in terms of comfort! Much less intrusive fit, both on the nozzle and shell. I can have these in my ears for hours without feeling much strain.

CABLE: I feel it needs to be emphasized how lovely the cable is! This is my first time using a cloth cable, so that may partly why it feels so different to me. However, it can't be understated, the cable is SOFT and it has perhaps the least amount of microphonics out of any cable I have tried. This is honestly my favorite cable, even up against more expensive ones I own. I ended up trying to find where these were sourced, and the cable alone costs about 50 dollars, without the multiple determinations which this one comes with. Very good value.

CASE: The case is simple and perfectly compact. I use this case as my daily case for whenever I am out of the house.

All-in-all, I can't recommend these enough! In the grand scheme of "which planar IEM to get" I can't say whether the Tangzu Zetian Wu, Letshuoer S12, HBB Heyday or 7Hz Timeless are better offers, but these were very much worth the price, and I would buy them again!

chris m colestock

Solid set that is fun for hours. Comfortable fit and is excellent for music or gaming.

Tony Tube
Nice upgrade

The new Hook X HBB is wonderfully tuned and balanced. Very musical and sonically satisfying. Good job everyone.

Very detailed and engaging with excellent price

Compared with the original Hook-x (i own both) the upper bass boost probably generated through the bone conductor is much recessed in the HBB tuning. I love the HBB tuning in the higher regions. Cymbals sounds crisp like in a live session. This is my first IEM with such a good representation. As the original version this IEM is engaging and fun to listen. I think the price is very competitive and can compete without problems with my high priced IEMS such as Sennheiser IE600 or Campfire Solaris. The IE600 has a similar tuning to the HBB Hook X.
The HBB Hook X cable is the same cable as the original Hook X cable but in blue.
The cable looks good and represents a good value with the universal connectors but delivers a granular representation in the highs. I am using a DUNU silver plated cable instead with much better acoustic results.
Thanks to Linsoul for the excellent and always reliable delivery service to Switzerland.

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 (Support@Linsoul.com) 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 support@Linsoul.com for after-sale services. The following details are required.
1) Send an email to support@Linsoul.com 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

You have successfully subscribed!
This email has been registered