KZ
KZ Castor Tuning Adjustable Dual Driver IEM - Improved Bass
KZ Castor Tuning Adjustable Dual Driver IEM - Improved Bass
Pre-order Price
Ready Stock Price
Couldn't load pickup availability
Have a question? Contact us!

Collapsible content
Description
The KZ Castor is not a compromise. It is a statement. Engineered with a stacked dual dynamic driver architecture and up to 16 tunable sound profiles via four physical switches, the Castor delivers a level of acoustic control that most earphones at several times the price cannot match. Now available in Bangladesh at FancyKeebs, order today and receive it this week.
Two Versions. One for Every Listener.
- Impedance: 31 to 35 Ω
- Sensitivity: 105 ±3 dB
- Ideal for: Vocals, acoustic, jazz, classical
- Impedance: 16 to 20 Ω
- Sensitivity: 103 ±3 dB
- Ideal for: EDM, hip-hop, trap, gaming, bass music
Stacked Dual Dynamic Driver Architecture
⚙️ How the stacked cavity works: KZ places both drivers in a top and bottom stacked arrangement rather than side by side. This keeps the overall shell compact and comfortable while allowing each driver to operate in its own isolated acoustic chamber, eliminating frequency interference between the bass and treble drivers.
4 Tuning Switches: Up to 16 Sound Profiles
Each KZ Castor ships with four physical rocker switches on the shell. Two switches adjust low frequencies and two adjust high frequencies, each in two stages. Flip them in any combination and you unlock a completely different sound signature without changing the earphone itself.
- DDDD All switches off. Flat, reference tuning. The Harman baseline, detailed, balanced and neutral.
- UUDD Bass boosted by 2dB. Slightly more punch in the low end while keeping mids and highs clean.
- DDUU Mid and high frequency lift by 2dB. Brighter, more forward treble and enhanced vocal presence.
- UUUU All switches on. Maximum bass and treble boost simultaneously. V-shaped, energetic and fun.
Key Features
- Stacked dual dynamic drivers: Dedicated bass driver and a dedicated mid and high driver, operating without interference from one another.
- 16 customisable sound profiles: Via four physical tuning switches for low and high frequency adjustment.
- Harman FR curve adherence: Both versions are engineered around the global Hi-Fi reference standard used by flagship products.
- Over 10dB low-frequency drop: In the Improved Bass version, outperforming most budget earphones in sub-bass output.
- Memory foam eartips included: slow rebound material for a secure, fatigue-free seal and excellent passive noise isolation.
- Detachable 0.75mm 2-pin cable: standard pin size compatible with a wide range of aftermarket cable upgrades.
- High precision injection moulded shell with tolerances around 0.01mm, far tighter than standard 3D-printed IEM housings.
- Inline microphone and controls included, compatible with standard smartphone calls, pause and play and track skipping.
Recommended Listening Genres
- EDM and Electronic
- Hip-Hop and Trap
- Pop and Vocals
- Rock and Metal
- Jazz and Acoustic
- Classical
- Gaming
- Podcasts and Calls
- K-Pop and J-Pop
- R&B and Soul
KZ Castor Full Specifications
| Specification | Harman Target Version | Improved Bass Version |
|---|---|---|
| Driver Configuration | Stacked dual dynamic driver (10mm bass + 8mm mid-high) | |
| Frequency Response | 20Hz to 40,000Hz | |
| Impedance | 31 to 35 Ω | 16 to 20 Ω |
| Sensitivity | 105 ±3 dB | 103 ±3 dB |
| Tuning Switches | 4 physical switches up to 16 sound profiles | |
| Plug Type | 3.5mm | |
| Pin Type | 0.75mm 2-pin detachable | |
| Cable Type | Flat transparent black OFC cable | |
| Cable Length | 120 ±5 cm | |
| Microphone | Inline mic with media controls | |
| Eartips | Memory foam and silicone eartips included | |
| Available in BD | Yes, FancyKeebs local stock | |
KZ Castor Price in Bangladesh: Buy Local, No Customs Wait
Looking up the KZ Castor price in Bangladesh and tired of seeing international sites with costly shipping and customs uncertainty? FancyKeebs stocks both the Harman Target version and the Improved Bass version locally in Bangladesh so you pay a fair, transparent price in BDT with no hidden import charges. The current KZ Castor price in BD is shown above. Whether you want the standard tuning or the KZ Castor bass edition price in Bangladesh, both variants ship from local stock to Dhaka, Chittagong, Sylhet, Rajshahi, Khulna and all districts nationwide — typically arriving in 1 to 2 business days to Dhaka.
Frequently Asked Questions
What is the difference between the KZ Castor Harman Target and Improved Bass versions?+
What are the KZ Castor tuning switch settings and what do they do?+
What is the KZ Castor driver configuration and size?+
Is the KZ Castor good for gaming?+
What is the KZ Castor impedance and does it need an amplifier?+
Can I upgrade the cable on the KZ Castor?+
What is the KZ Castor price in Bangladesh in BDT?+
Is the KZ Castor worth buying in Bangladesh for its price?+
Delivery Time & Charge
| Zone | Estimated Delivery Time | Charge |
| Dhaka City (Standard) | 1-2 Days | 70 TK |
| Dhaka City (Express) | Same Day (From 4 pm to 9 pm approx) | 110 TK |
| Gazipur/Narayanganj/Savar | 1-2 Days | 70 TK |
| Outside Dhaka | 1-4 Days | 100 TK |
*Please note: The delivery times provided are estimates. The final delivery time depends on the courier service and may vary.
Return & Refund Policy
Return, Refund & Exchange Policy
Last Updated (Policy): July 01, 2025
Last Updated (Webpage): November 9, 2026
Thank you for shopping at FancyKeebs! We are committed to ensuring customer satisfaction and providing a reliable shopping experience. This policy outlines the terms and conditions governing returns, refunds, and exchanges. By placing an order with FancyKeebs, you acknowledge and agree to the terms outlined below.
1. Conditions for an Eligible Return
We accept return requests under the following circumstances:
- Wrong Item Received: You received a product different from the one you ordered.
- Faulty Product: The product is non-functional or has a manufacturing defect upon arrival.
- Physically Damaged During Transit: The product was physically damaged during delivery.
- Failure of Delivery (Ready Stock): A ready-stock product has not been delivered within 10 days from the date of shipment.
- Failure of Delivery (Pre-Order): A pre-order product has not been delivered within 90 days from the date of confirmation.
Mandatory Unboxing Video Requirement:
For claims involving a wrong, faulty, physically damaged, or missing item, a clear and unedited unboxing video is mandatory. The video must show the package being opened from its original sealed condition through to the discovery of the issue.
To qualify for a return, the product must be in the same condition as received, unused, and accompanied by its original packaging. You must also provide a valid proof of purchase.
2. Conditions Where Returns Are Not Accepted
We do not accept return requests under the following circumstances:
- Change of Mind: Returns are not accepted if you simply change your mind after making a purchase.
- Product Not in Original Condition: The product has been used, altered, or is missing any original parts or accessories, including the packaging.
- Packaging Not Intact: The product is not returned in its original, undamaged packaging.
- No Valid Proof of Damage: Claims involving physical damage during transit will not be accepted without a clear and valid unboxing video.
3. Return & Refund Process
Step 1: Initiate a Return Request
To initiate a return, contact our customer support team at refunds@fancykeebs.com or our facebook/instagram/whatsApp within 24 hours of receiving your order.
Please include:
- Your order number.
- A clear description of the issue.
- Relevant supporting evidence, such as photographs and the mandatory unboxing video, where applicable.
Step 2: Return Approval & Shipment
Our team will review your request and notify you of the decision. If your request is approved, we will provide instructions regarding the return shipment, including the return address and any applicable requirements.
Products sent back without prior return approval will not be accepted.
Step 3: Quality Control (QC) Inspection
Once we receive the returned product, our Quality Control (QC) team will inspect it to verify that it meets the eligibility conditions outlined in this policy.
Step 4: Refund Processing
If the returned product passes QC inspection and the return is approved, we will initiate the refund to your preferred payment method.
Please allow up to 7 business days for refund processing after final approval.
4. Fees & Charges
The following fees and charges may apply to returns and refunds:
- Original Delivery Fee: The original shipping or delivery fee is generally non-refundable, particularly when the return is not caused by an error on our part.
- Return Courier Fee: Depending on the circumstances of the return, a return shipping fee charged by our courier partner may apply. If applicable, this fee will be deducted from the final refund amount. We will inform you of any such charges before proceeding.
5. Exchange Policy
In certain circumstances, an exchange for a different product may be possible. Exchanges are considered only when the following conditions are met:
- The product was purchased directly from FancyKeebs.
- The product is completely unused and remains in its original condition.
- The product is in its original, unopened packaging.
Additional terms and conditions may apply depending on the specific circumstances of the exchange request.
If you wish to request an exchange, please contact our customer support team with your order number and the details of your request within 24 hours of receiving the parcel. Our team will review your case and inform you of the available options.
Contact Us
If you have any questions or concerns regarding your order, returns, refunds, or exchanges, please feel free to contact us.
For Return & Refund Requests: refunds@fancykeebs.com
For General Support: support@fancykeebs.com
Our team will be happy to assist you!
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
It's great.