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OSTRY KC07  BA & Dynamic Driver Hybrid MMCX HiFi Audiophile In-ear Earphone IEMs


Incredible industrial design

The KC07 adopts a more scientific and effective split sound chamber design. The front chamber sound is cut with stainless steel with better acoustic characteristics, and the sound chamber is made of special alloy. It is also integrated with multi-process CNC cutting.

The ear canal data is measured multiple times, bringing a special air arc curve cavity to enhance comfort.

Deep and transparent, faint light transmission, a large number of arc curves, bringing a warm and harmonious overall sense

KC07 is made of two different processes: precision titanium surface and anodized metal blasting.

The front of the earphone is made of an opal-like patch with the same color as the earphone. The left and right ears are respectively printed with beyond, fantasy, which is convenient to differ left and right.

In terms of wire, the litz line, which is a combination of 8-core single crystal copper and silver- plated oxygen-free copper, provides a discernible and significant improvement.

In terms of configuration, KC07 adopts dual-driver BA and Dynamic driver hybrid design, the BA part adopts customized imported Knowles driver, and the dynamic diver part uses self-developed, using the patented “molecular bionic” diaphragm dynamic driver.

Hi-end grade tuning technology and level, the use of "three-chamber steady-state tuning", making the dynamic sound more natural, in order to achieve a better state of the driver.

Thanks to the powerful dynamic strength, we no longer use the dynamic driver as the low-frequency driver,, but make the dynamic driver sound all the way. the middle and high-frequency are make-up by the custom BA, the BA adopts the ductless design, in the sound outlet. Place it in reverse.

KC09 adopts the tuning we think is healthier. Under the condition of maintaining overall transparency, the tri-band energy is relatively balanced, and the vocal part does not deliberately reveal the so-called resolution. But has the right thickness of human voice, which is graceful and smooth. Has a charming but do not belong can be dyed tone,. The low frequency part is moderate, but the cohesion is not reduced. The listening is fluffy and natural, the high frequency and high frequency extension are excellent, and the instrumental sound is outstanding. KC07 has achieved a rare and accurate restoration, natural comfort and a strong overall sense.


Drive unit: 10mm CCAM combination imported BA driver

Diaphragm: EBT

Sensitivity: >101db

Rated impedance: 24 ohm

Frequency response: 20hz-20khz

Distortion: <1%

Channel difference: <1.5db

Rated power: 10mv

Cable: 1.2m MMCX

Plug: 3.5mm



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Free Shipping

All listed items will be shipped through Registered Airmail with tracking number if there is no extra shipping option or shipping description at the product page.

Economy shipping: Will be shipped without tracking number.(because of the covid-19 affects, economy airmail parcel is easy to lose, pls place the order by choosing registered airmail, or you purchase one more product , we can send together via registered airmail)

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Express service: Will be shipped via DHL/EMS/UPS/FedEx,Canada and Europe countries will be shipped via tax-inclusive shipping method for free.

  • Views: 10117
  • Brand: OSTRY
  • Product Code: KC07
  • Availability: In Stock
  • $199.00

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Tags: OSTRY KC07, Hybrid, MMCX, 2drivers