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TRN TA4: 2DD+2BA Hybrid In-Ear Monitor Earphones with HiFi Bass Sound
Introducing the TRN TA4, a remarkable hybrid in-ear monitor that combines the power of dual dynamic drivers and balanced armature to deliver a high-fidelity audio experience. With its innovative design and superior sound quality, the TA4 is a perfect choice for music enthusiasts seeking immersive and detailed sound reproduction. Let's explore the features that make the TRN TA4 stand out.
Building upon the success of the TA3, the TRN TA4 incorporates several improvements and innovations. TRN products are known for striking a balance between price and quality, and the TA4 continues this tradition. The conventional electronic crossover ensures accurate distribution of bass, midrange, and treble frequencies, while the combination of dual dynamic drivers and balanced armature creates a cohesive and seamless sound signature across the entire frequency spectrum.
The TA4 features a dual dynamic driver system paired with a Knowles balanced armature, taking inspiration from the successful TA3 model. The wide frequency response of the dynamic drivers, combined with the exceptional resolution of the balanced armature, results in an exhilarating music experience. Whether you're listening to bass-heavy tracks or intricate melodies, the TA4 provides a perfect balance of power and finesse.
Equipped with a 10mm beryllium-coated dual-magnetic dynamic driver for low frequencies, a 6mm titanium-coated dynamic driver for mid-range and upper-mid-range frequencies, and two Knowles 33518 balanced armature drivers for treble, the TRN TA4 delivers crystal-clear treble and beautiful vocals. The open and wide soundstage allows you to immerse yourself in the music, experiencing every nuance and detail.
The TA4 features an elegant design with an aluminum alloy faceplate and midframe, combined with imported semi-transparent resin. This combination not only provides a luxurious aesthetic appeal but also contributes to an exquisite sonic presentation. The semi-open back design helps achieve air pressure balance within the earphones, ensuring comfort and allowing you to enjoy your music without any discomfort or fatigue.
The TRN TA4 comes with a standard audiophile-grade cable that features swappable connectors for added convenience. The cable is a 4-core silver-plated copper and oxygen-free copper braided cable, delivering smooth treble extension and a visceral bass response. With plug-and-play convenience and compatibility with 3.5mm, 2.5mm, and 4.4mm connectors, the TA4 is ready to enhance your audio experience across various devices.
A new tariff system will take effect across all 27 EU member states starting 1 July 2026. The EU is abolishing the duty exemption for low-value parcels — all goods entering the EU will now be subject to customs duties, including a fixed duty of €3 per HS tariff code category for IOSS-declared goods under €150.
A handling surcharge of USD $5 has been applied to all standard shipments to EU countries on orders under $500. Orders over $500 qualify for free expedited shipping.
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In the event that a shipment is refused, undeliverable, or returned to sender, HiFiCat will process a refund to the original payment method. If a customer requests reshipment, a reshipment fee will apply. A restocking fee of up to 20% may also apply.
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All taxes and duties are prepaid (DDP). 10–15 working days.
💰 Shipping cost: $5.00 USD (orders $0–$500) | Free (orders $500+, via DHL Express)
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All taxes and duties are prepaid (DDP). 10–15 working days. Free standard shipping.
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