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  • Stock: In Stock
  • Brand: ECCI
  • Model: YST-03
Product Views: 5830

ECCI YST-03 2BA + Dynamic Driver Hybrid 2pin 0.78mm HiFi in-ear Earphone


Custom ultra-high dual balanced armature

Japanese CCAW voice coil dynamic driver

5N single crystal copper silver-plated cable

Acoustic Space Tuning Technology

PVD gold-plated border inlaid dyed natural abalone shells

Easy to push omnivorous, comfortable to wear

Starting from the heart, YST

ECCI earphones have always pursued the natural and transparent sound of sound, which is dominated by easy-to-push and long-lasting listening, and implements the theme of not getting tired of listening. Reference is aimed at matching mobile phones to portable lossless players, so that the pleasure of enjoying high-quality music can be brought to more different groups of people, this as a reason to open a new series of products Yinshite.

Auricle zone pressure adjustment, comfortable fit in the ear

Wear around the ear, with memory PU hose ear hooks, more comfortable and more stable to wear. The small cavity is in line with the shape of the human ear, and there is no pressure when wearing it for a long time.

Two-way frequency division hybrid driver, simplifying complexity, not blindly stacking materials, suitable is good

Two-way frequency division is a very common frequency division method in traditional HiFi bookshelf speakers, usually provided by large-sized speakers. Through multiple selection speakers with cooperative speaker manufacturers and then design and pairing combinations, physical frequency division and RC circuit frequency division are used to make the timbre accurate and the transition natural and loose.

Rich cable expandability

The cable is made of four-strand litz structure single crystal copper silver-plated, and the cross-braided wire can effectively reduce the loss and distortion of signal transmission. The custom 2pin 0.78mm interface is highly resistant to unplugging to ensure signal transmission.

Space reconstruction tuning

Comprehensive use of sound psychology, acoustics, subjective aesthetic, the strong depth of space conditioning, strengthen the specific non-sensitive frequency, enhance the depth of sound diving, improve the sound head space, improve the degree of music information separation to obtain similar to the room listening speaker from far and near experience.

Jewelry-grade appearance creates a light and luxurious texture

The PVD gold-plated cover is inlaid with dyed natural abalone shells, and with high-transparency resin, it has a jewelry-grade texture. The color of the natural panel is unique, making it a good-looking blind box, is a good sound and a bright accessory.

*The abalone shell has an uneven structure at the microscopic angle, and it can produce brilliant and colorful colors under different incident angles of the optical fiber, which is the real abalone shell. Panel appearance is random


Model: YST-03

Driver: 10mm liquid suspension dynamic + custom ultra-high dual balanced armature

Sensitivity: 102dB/Vrms(@1kHz)

Impedance: 25Ω±15%(@1kHz)

Distortion: <1%(@1kHz/1mW)

Frequency response: 5Hz-40kHz

Cable material: Litz single crystal copper silver-plated

Cable length: 1.25m

Plug: 3.5mm

Connector: 2 pin 0.78mm




David 25/08/2022

Its technicalities are overall good. Timbre is a bit edgy sounding especially for the upper mids area and lacks a bit of naturalness. Due to ample treble presence its details are its strength with good imaging and sound separation. Tonality is skewed a bit toward the treble aspect of its balancing yet can clearly hit the low notes as intended with zero roll off. The YST-03 makes for an energetic detailed listen but comes at a time where competition at the $100 level sees planars and dynamics that use premium drivers. It's got enough going for it to stand on its own especially for folks that appreciate some full trebles in their IEM presentations.

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Tags: 3drivers , hybrid , 2ba , 1dd , 2pin

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