【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
A hybrid structure that combines two balanced armature drivers and five balanced armatures provides richer and more detailed audio. For more detailed performance, the ST7 features a new two-balanced-armature driver and five-balanced-armature architecture. Using coaxial dual moving coils, a balanced armature driver unit handles mid-bass and bass, and five balanced armature units jointly process high frequencies and mid-high frequencies. The excellent connection between the two allows you to capture richer and more subtle details, comprehensively improving high-quality detail resolution and providing a richer and more complete sound performance.
Delicate sound quality, pure listening experience, coaxial dual dynamic driver design. ST7 adopts 10mm+6mm coaxial dual moving coil design. Its advantage lies in the 10mm LCP low frequency diaphragm, which allows for a deeper low frequency response, allowing the audio to perform better in the low frequency range. At the same time, the 6mm composite diaphragm handles the mid-low frequency part better, ensuring clarity and high fidelity for mid-frequency content such as vocals. Deep bass resonance and detailed reproduction of mid and high frequencies are both expressed with greater precision, creating a more realistic, clearer and more dynamic audio experience. This allows you to immerse yourself in the emotion and power of the music.
Transparent Resolution Custom High Frequency Balanced Armature Unit Combination In the ST7, we have carefully crafted a combination of five balanced armature units. To achieve optimal resonance between the dynamic driver and balanced armature unit, we carefully tuned their resonance to naturally align with the resonance peak formed in the human ear's coupling. This not only ensures a smooth and seamless transition between dynamic and balanced armature drivers, but also allows for a more natural adaptation to the transition. Acoustic engineers strategically placed two ultra-high frequency balanced armature units close to the sound exit to minimize reflections during high frequency transmission and preserve the integrity of high frequency details. This meticulous design provides an excellent listening experience, capturing the exact moment a string is plucked and immersing you in a truly realistic soundscape.
Stunning high-fidelity sound quality, smooth and natural multi-driver tuning. ST7 uses a highly accurate 3-way crossover design that carefully calculates the playback frequency of each driver and rationally allocates bass, midrange, and treble ranges. This results in a balanced and harmonious sound performance. Precise design and tuning provides a smooth, natural overall response with a flat frequency response and excellent playback ability. This flexibility allows you to enjoy different music genres.
Available in two classic black and white colors, with aesthetic appeal in mind. To make it easier to choose your favorite color, we offer two colors: classic black and white. It combines excellent sound quality with outstanding appearance. The ST7's housing is designed using thousands of ear impressions collected over the years to ensure a custom-like fit. Improved comfort and noise isolation. The earphone's cavity design calculates a large amount of ear print data and allows the ST7 to better fit the shape of your ear when worn, allowing you to focus on the music in any situation.
Product specifications Product name: TRN ST7 hybrid type (5BA+2DD) natural resin HIFI inner ear earphones Brand: TRN Model: ST7 Plug: 3.5mm Connector type: 2pin Attachment method: Ear hook type Driver configuration: 2 dynamic drivers & 5 balanced・Armature driver Impedance: 30Ω Frequency band: 20Hz-20KHz Sensitivity: 112dB Cable length: 120cm Weight: 4.9g Color scheme: Black/White
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