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TRN TA4 2BA+2DD Knowles Hybrid in-Ear Earphones/Headphone

TRN TA4 2BA+2DD Knowles Hybrid in-Ear Earphones/Headphone

Regular price £116.00 GBP
Regular price £116.00 GBP Sale price £116.00 GBP
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Product Model: TRN-TA4

Jack Type: 3.5+2.5+4.4mm

Wear: Ear Hook

Earphone Topography: Hybrid In-Ear Monitors

Freqquency Response: 20Hz-40kHz

Connector Type: 2Pin

Impedence: 20Ω

Sensitivity: 105dB

Cable Length: 1.2m±3cm

Colours: Silvery Black

Weight(earpiece+cable): about 5.7g+20g

TRN TA4: 2DD+2BA Hybrid In-Ear Monitor Earphones with HiFi Bass Sound

Elevate Your Audio Experience with TRN TA4

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.

1. Robust Level of Performance

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.

2. The Perfect Combination of Rigidity and Flexibility

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.

3. Crystal-Clear Treble and Beautiful Vocals

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.

4. The Perfect Blend of Alloys and Resins

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.

5. Practical Accessories for Audiophile Experience

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.

What's in the Box?

Shipping & Returns

  • Free Standard full searchable Shipping
  • DDP(Delivered Duty Paid) Services, No payment on receiption
  • Free 7-Day Return Policy!

Shipping Fees

Worldwide Free Shipping on Hificat, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

In the event that a shipment is refused delivery by the recipient, is undeliverable, or is returned to sender, Hificat will process a refund to the original payment method used.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.


Which Couriers To Use?

We collaborate with these courier companies:
Standard Shipping: Yanwen Express
Express Shipping(over $500 can be free): DHL Express, FedEx and SF Express

Hificat has extensive global logistics experience to ensure quality logistics services to consumers.

HiFiCat offers consumers different shipping, depending on the country, a choice of different shipping methods.


Estimated Delivery Time

1. France, Germany, UK, Italy, Spain, USA.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 6-10 days to arrive.

Tracking Example



United Kingdom:



United States:

2.EU Country:Filand, Poland, Estonia, Norway, Switzerland, Greece, Sweden, Israel, Czech Republic, Slovenia, Slovakia, Denmark, Netherlands, Latvia, Croatia, Austria, Hungary, Belgium, Bulgaria, Romania, Ireland, Malta, Iceland, Serbia and so on.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 10-15 days to arrive.









Czech Republic:


















Russian Federation

3.South America:Peru, Brazil, Chile



South Africa:


New Zealand:


5.Canada By Canada Post, about 2 weeks.
6. Asia:
Japan By Japan Sagawa Global Transportation. About 7 days.
Thailand By jt express. About 5-7days.
Malaysia by jtexpress.My  About 5-7days.
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