Kiwi Ears Quartet
The Kiwi Ears Quartet was designed around our new sobaric double dynamic driver subwoofer. The innovative driver design utilizes two 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits. The pair of drivers were passively aligned to be phase synced and prevent soundwave cancellation. This new subwoofer design emits extremely well extended sub-bass kicks that are tighter, faster, and deeper than any other previous woofer designs. The Quartet is Kiwi Ear’s answer for all those who want a fun in-ear monitor that will provide all the quality bass one could need.
Although the Quartet is a bass-centric IEM, we still aimed to provide a natural tonal balance. This goal was centered around the need to provide a textured and powerful bass, but without any muddying or dulling in the mids or treble. The dynamic drivers were crossed over using a passive low-pass network at 350Hz to allow plenty of rich and thick bass, while the mids from 350-1kHz were tuned to be completely flat.
This allows an accurate tonality in the mids like that of neutral studio monitors, while giving a hint of warmth in the lower mids. This means the Quartet will sound thunderous in the bass, but still clean and flat in the mids, preventing unwanted bloating found in most earphones.
Custom Balanced Armature Drivers
The Quartet features a custom mid-high frequency balanced armature and a custom ultra-high tweeter balanced armature drivers. These drivers were modified to fit the balance of the new dynamic drivers by a tuned venting system to provide more airflow. Following Kiwi Ears’ tradition, the balanced armatures are passively tuned to fit our in-house target curvature for the mids and trebles. This means the mid-treble provides crisp and clean tone to vocals and instruments, without sounding either dull or nasally. The highs are detailed with plenty of sparkle for professional performance usage, but are natural and free of shrillness or fatigue.
The Quartet can be thought of as neutral studio monitors, but with sub-bass and bass emphasis beginning at 350Hz. This provides a little bit more of body, texture, and richness in the lower mids, but neutral mids and upper mids. The Quartet is perfect for performance drummers and bass guitarists who require powerful and impactful lows. Music enthusiasts who want quality bass but a natural tonality will also benefit from the Quartet’s tuning balance.
About Kiwi Ears
Driven by the pursuit of extraordinary audio reproduction, at Kiwi Ears, we create the perfect amalgam of technological innovations with refined tuning strategies. With musicians and studio engineers particularly in mind, we are on an uncompromising quest to produce the finest professional In-Ear Monitors that will reveal every nuance in your music and performance. Never settling for mediocre, our small team of dedicated engineers handcrafts each unit so that you can worry less about what’s in your ears and focus more on the sounds you are making. We are Kiwi Ears, and we’re bringing you music heard like never before.
This product is in Pre-order period. Pre-orders are provided for items that have not reached us and will take some time to be shipped out.
Processing time: For orders placed from 17 June 2023, 2 weeks.
- No cancellation of orders once ordered.
- All orders to be shipped out sequentially.
Sound grate for gaming and music, feel very premium (both the cable and the iem's themselves), switches make a difference and are very interesting to play around with, the case is very nice too, came basically in 10 days and I'm very happy with them
Kiwi Ears Quartet
We are sorry that our product did not satisfy you.
The Kiwi Ears Quartet was designed around our new sobaric double dynamic driver subwoofer. The innovative driver design utilizes two 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits. The pair of drivers were passively aligned to be phase synced and prevent soundwave cancellation. This new subwoofer design emits extremely well extended sub-bass kicks that are tighter, faster, and deeper than any other previous woofer designs.
The sound is very subjective. So we can totally understand that some people might not like the sound of these headphones.
We will also share your feedback with the manufacturer to make the product better and better in the future.
At the same time, we also sincerely suggest that you contact us at any time by email support@Linsoul.com if you encounter any problems during use, and we will do our best to solve them for you.
We appreciate your understanding and support.
This is my second product review for Kiwi Ears as I previously did a review on their first single dynamic driver in the entry-level category, The Cadenza. This is Kiwi Ears Quartet and it is a hybrid driver set-up IEM with toggle switches for different types of tuning. How will the Kiwi Ears Quartet be able to compete with other sets with similar features?
△ Beautiful and well-crafted acrylic resin shells.
△ Quite lightweight and probably has one of the best UIEM-style shell form factor when it comes to fitting and comfort as it snugs well into my lugholes.
△ Working toggle switches.
△ Good quality stock cable.
△ A plenty amount of ear tips to choose from
△Good quality IEM carrying case for stowage.
△ Easy to amplify as it scales well to all known sources.
△ A warmish U-shaped sound signature that will be likeable to majority type of casuallisteners.
△ Robust bass response.
△ Warm and textured midrange
△ Smooth and relaxed treble register.
△ Analogue-ish tonality the will gives a more pleasant and engaging listening experience.
▽ Occurrences of mid bass smearing across to other frequencies due to its boomy nature that it sounds a bit bloated.
▽ Will not give a lively, vibrant and energetic sound on sopranos and tenors
▽ Too warm sounding in my preference on sound quality.
▽ Overall mediocre technical performance.
For more information, check the link below:
Great sounding with decent resolution and staging. Sound switches add versitality. Good cable. Comfortable for long periods.
For the price these are hard to beat.
Staging is not the widest, and some instruments come across as too hard and harsh for my liking, such as drum snares.
All the combinations of the drivers gives off a very one of a kind sound that I haven't hear before
The Quartet is an easy to wear set for me, despite it's larger than average size shell the fit works great for my ears. The bass response is warm, and that colors to the sound of the IEM, which means it's well suited for genres where you're looking for a warm, relaxing and satisfying sound.
The sound stage is a little more claustrophobic than some $200+ I have, but I kind of expect that at this price point. There's also some treble extension that's missing, or some sparkle on the high end. But again, I think that's the concession that had to be made to achieve a low price point.
And that's the long and short of the Quartet, I think it has exceptional looks and a warm bassy sound signature that doesn't bleed too much in to the mids at an attractive price for what's included. To me, it's a solid 4/5 product that I can bring with me to work and not worry too much about them walking away but not sacrificing much to have that comfort. (P.S. I HIGHLY recommend getting a matching cable to complete the look)
Kiwi Ears Quartet
Thank you so much for your reaching out to us.
Could you please tell us what problem you are facing?
Our team has sent you an email to follow up on the situation,please feel assured that we will try our best to help you to fix the problem.
Once we confirm the condition and the issue position, we will try our best to help you with it. Please do not worry.
If you encounter any problems in the future, we sincerely suggest that you contact us via email (support@Linsoul.com)at the first time,because we can solve your problems in a more comprehensive way.
We are looking forward to your reply and are ready to issue further help.
Have a nice day!
I ordered it on Amazon May 27 and received it on June 10. I am convinced that my unit is defective because the switch configurations don't show any noticeable difference, this is my 6th day of using and testing it. I have the same experience with this reviewer: https://youtu.be/V8V8sDP2els
Additionally, the cable that came with my Quartet has an unbraided portion, as shown in the attached photo. While this is mildly annoying, I am grateful that I was able to fix it myself. Please ensure quality before sending the product!!! I wanted to like it but these issues makes my purchase a regretful decision. I am in Canada and returning your items is too hassle!!
Pros: good packaging, smells good, beautiful medical-grade resins, good looking cable, by default both switches are up and have clear and intimate sounding vocals, thumpy bass texture
Cons: DEFECTIVE switches, cable quality issue
We are sorry that our product did not satisfy you. At the same time, we are also very grateful for all your suggestions and experience on our products, which will enable us to make more progress.
Since we cannot find your order number on the official website, we cannot solve this problem for you very well.
Could you please contact us via email support@Linsoul.com with your Amazon order number and product questions? We will solve your problems in a more comprehensive way.
Thank you for your support and understanding.
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 thetwo-way freightcharges. 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 refundwill 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?
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.
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.
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
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.
- Send an email to support@Linsoul.com with an appropriate Subject Title
- Provide your order number and state the issue clearly
- 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.
How do I cancel 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. Orders that have been shipped cannot be cancelled and modified.
As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.
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.
30-Day Return Policy
Where should I send the product for the return process?
To initiate the return shipment, kindly send an email to support@Linsoul.com within 30 days upon receiving the sealed product(s). The RMA form and details will be provided to you via email.
When must the product be returned after receiving the RMA form and details?
After receiving the return instructions from us via email, kindly arrange the return shipment of the parcel within 5 working days, and update us with the tracking link via email again. Failure to do so will result in a cancellation of the return process.
When will I receive my refund after returning the product?
In most cases, after receiving and inspecting the returned product, your refund will be processed within 5 business days. Refunds may incur a currency exchange loss or transaction fee, depending on your source of payment (e.g. Bank or PayPal). Linsoul will not be responsible for such fees.