audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

(News) SUPERTFZ FORCE1: Tesla Magnetic Group Beryllium-Coated Diaphragm 2pin 0.78mm HiFi in-ear Earphone




Introducing the SUPERTFZ FORCE1, the latest in Tesla driver IEMs.


SUPERTFZ FORCE1 earphones are positioned between "high-definition stage level" and "metaverse fashion". The design is inspired by crystal light, and the transparent all-hand resin integrated production process ensures sufficient texture and visual simplicity. The acoustic drive unit adopts the brand's fourth-generation Tesla dynamic technology, which is a reference-level stage monitor-level music earphone work.



  • Hi-Res high-resolution audio design standard
  • Lock in professional stage style
  • Tesla Flux full PRO mode
  • Passive cavity elimination harmonic design
  • Dual magnetic circuits-dual sound cavity 4K cinema sound system
  • HD silver-plated cable
  • Crystal symphony shines in the ear



  • Model: FORCE1
  • Driver: 10.2mm dual magnetic Tesla magnetic group Beryllium coated diaphragm
  • Impedance: 32Ω
  • Sensitivity: 105dB
  • Frequency response: :5Hz-40kHz
  • Cable length: 120cm
  • Plug: 3.5mm stereo straight plug
  • Connector: 2pin 0.78mm


Hi-Res high-resolution audio design standard

The reference-level dual magnetic circuit dynamic system, the sound field bandwidth is powerfully improved, the performance in music quality and sound reproduction is incisive, the experience is completely refreshed, and the ultra-clear atmosphere of the live performance is truly felt, and the resolution is outstanding. It is the brand of SUPERTFZ Dynamic earphones with a leap in performance.


Lock in professional stage style

The powerful dynamic unit is equipped with a new type of Nano-coated diaphragm material, and the ability to capture sound details is even more brilliant. It is a new expert in interpreting stage-level sound. Not only the imaginary hearing resistance, but thanks to the balanced distribution of the three-frequency energy magnetic field, also brings a different pleasant listening feeling without sound coloration.

Tesla Flux full PRO mode

Thanks to the powerful Tesla dynamic unit design, the details that are difficult to interpret are presented in a shocking manner. The ultra-dynamic feedback system also makes the information present a more natural and realistic restoration performance, and has the function of precise instrument vocal positioning. In addition, sensitive transients are also outstanding.

Passive cavity elimination harmonic design

The well-designed Non-Cavity harmonic copper seat reduces the distortion rate to as low as 0.5%, and the sound quality have greatly improve. The static black background sound makes the music more integrated into the immersive experience, and the soft tone is in the ear.


Price & Availability

SUPERTFZ FORCE1 is available at Penon Audio for $79.