iBasso 3T-154 Dynamic Driver IEMs

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  • Type: Dynamic (15.4mm)
  • Frequency Response: 7Hz-41kHz
  • Sensitivity: 116dB+/-2dB
  • Impedance: 16 ohm
  • Noise Attenuation: -26dB
  • Rated Power: 10mW
  • T.H.D: <1% (at 1kHz /179mV)
  • Plug Size:  4.4mm TRRRS Gold-Plated & 3.5mm TRS Gold-plated
  • Cord Length: 1.2m
  • Weight: 18.8g without cable


In the Box

  • iBasso 3T-154 Dynamic Driver IEMs
  • High-purity silver-plated copper cable
  • 3.5mm and 4.4mm swappable plugs
  • Storage case and extra eartips


Clearance products


≈3T Magnetic Flux - Impressive Micro Detail & Exceptional Transient Response

Innovative dual magnetic circuit design combines with the custom high magnetic strength N55 NdFeB magnet presenting an astonishing magnetic flux of approximately 3T, which is nearly double compared to the current 1.6T magnetic flux of other flagship IEMs. The strong magnetic flux of the 3T-154 has many advantages such as superb transient response, concise detailed bass, better micro details and many other music qualities. The listening experience is outstanding.

15.4mm Maximized Diaphragm

The 3T-154 utilizes a 15.4mm diaphragm, a maximized diaphragm size for an IEM. The 15.4mm large diaphragm has excellent sound pressure, and combined with the ≈3T magnetic flux, you can experience the most superb dynamics that you have ever heard from an IEM.

Beryllium-plated Diaphragm - Utilizing Embossing Technology

The beryllium-plated diaphragm possesses remarkable internal resistance and exceptional rigidity. Additionally, the embossing technology further enhances the diaphragm's rigidity, which drastically minimizes distortion while enhancing sound precision.

Magnesium Alloy Shell - Lighter & Stronger

3T-154 uses high-hardness magnesium alloy as the shell material. Comparing the same volume, this magnesium alloy is about 36% lighter than an aluminium alloy. It also has stronger rigidity, impact resistance, reduces resonance caused by the unit, and has excellent stability.

1.2mm Quick Switch Plug System - Outstanding Conductivity

3T-154 has added the 1.2mm quick switch plug system, which consists of four 1.2mm large-size pins. Compared with the common 0.78mm*4 pins, our system has a more robust contact area, the internal resistance is lower, the signal transmission loss is negligible, and the conductivity is outstanding!

0.78mm Two-pin Detachable High Purity Silver-plated Copper Cable

The 3T-154 comes with a detachable cable design and adopts a standard 0.78 two-pin interface, which makes it convenient if any cable replacement is desired.


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