W【series

High Performance　radius pro in-ear headphones

What is the DDM system? (

The dual diaphragm matrix (DDM) system is radius' new and unique driver system that divides frequencies into two, high and low, for the two independent, coaxial diaphragms. It achieves smooth and flowing sound and wide sound stage more precisely than the headphones in the past. Experience the mellifluous sound as if you're using a high-end speaker system.

A. Low-frequency diaphragm　B. Low-frequency voice coil　C. Anchoring ring　D. Acoustic cone　E. Inner yoke　F. Shared annular magnet　G. Outer yoke　H. Anchoring ring　I. High-frequency voice coil　J. High-frequency diaphragm　K. Frequency divider

W n°2 HP-TWF21

W n°2 HP-TWF21


HP-TWF21 Design

Preserving the image of the previous “W” series, the exterior was designed to take better advantage of the DDM system, and to provide better fit, visualizing delicate wind instruments. With higher quality in design and sound, here is the second series of “W,” HP-TWF21.

HP-TWF21 Sound Quality

Low tone reduced by 2-3 dB/mW comparing to HP-TWF11, HP-TWF21 has well-balanced sound with enhanced high tone. Furthermore by creating more space inside the housing succeeded in delivering vibrant sound. HP-TWF21 offers clear high resolution sound quality with the enriched high tone, and flow of rich, high-density sound.

HP-TWF21 PHOTO
The newly designed front housing gives better fit and sound insulation. It stays in the ears comfortably.
HP-TWF21 PHOTO
Inspired by gold-relief lacquerware, the housing is in shiny black with touches of gold as an accent. “W” logo indicating the “W” radius pro series.
HP-TWF21 PHOTO
Comes with an L-type mini jack adapter for better match to various music players.
HP-TWF21 PHOTO
The gold-plated ø3.5mm mini plug reduces noises and helps reproducing noises and reproducing clear high resolution sound.
HP-TWF21 PHOTO
For the cable, ø2mm nylon cable was selected for its silken texture, durability, and ability to make stains unnoticeable.

Specifications

Type of use Dynamic
Driver unit ø15mm/ø7mm (Dual Diaphragm/CCAW)
Sensitivity 107dB/mW
Frequency response 10Hz - 20,000Hz
Maximum input 20mW
Impedance 24Ω
Weight(w/o Cable) Approx. 7.3g
Cable material Nylon
Plug ø3.5mm Gold-plated stereo mini plug
Cable length Approx. 120cm (Y-type)

Accessory list

Accessory list
  • 2 sets of ear caps (S/M/L)
  • Cable winder x 1
  • L-shape plug adapter
  • Cleaning cloth x 1
  • Headphone case x 1
  • User registration card x 1
  • User's manual, Warranty card x 1
W HP-TWF11

W HP-TWF11

HP-TWF11 Design

Elegant design with refined details. Latest sound technology mounted in the classy exterior.

HP-TWF21 Sound Quality

The world's first headphones with DDM system. HP-TWF11 reproduces sound rich in low tone, giving the impression of using an audio speaker system. Reproduces spatial sound from high to low, more precisely than the headphones in the past.

Specifications

Type of use Dynamic
Driver unitø15mm/ø7mm (Dual Diaphragm/CCAW)
Sensitivity105dB/mW
Frequency response10Hz - 18,000Hz
Maximum input 20mW
Impedance24Ω
Weight(w/o Cable)Approx. 5.5g
Cable materialNylon
Plugø3.5mm Gold-plated stereo mini plug
Cable lengthApprox. 120cm (Y-type)

Accessory list

Accessory list
  • 2 sets of ear caps (S/M/L)
  • Cable winder x 1
  • Cleaning cloth x 1
  • Headphone case x 1
  • User registration card x 1
  • User's manual, Warranty card x 1