Radius HP-NEF11 Earphones


The “NEF” line-up from Radius is the basic line up with a simple philosophy: good value for the money.

You start with the NEF11 with has a linear sound signature with the least bass, going up to the NEF21 which has a fuller body and a smooth midrange, to finally the NEF31 that has a strong bass, good detail, and wide soundstage.

The tuning for all three models are very good with a clean and low-distortion sound. You can consider them all as budget audiophile IEMs.


Bundle Eartips SpinFit CP-100

Earphone Case

Radius HP-NEF11 Earphones


Ring-less diaphragm bonding system driver
It eliminates the unnecessary parts from the driver unit, a larger execution area of the diaphragm to the fullest.
Compared to the same diameter driver, it can achieve a more powerful sound.2

Introducing deep mount earpiece
Deep mount earpiece of the new shape is different from the conventional,
To fit earpiece is more in the back of the ear, providing a rich bass reproduction and stable fit.3

Adjustable port
It can be adjusted in two stages the mounting position of the earpiece.
It enhances the bass reproduction capability by allowing firm fit in your ear.


Double Precision Acoustic register structure
By using a structure that reduces the vibration suppression of the diaphragm to the driver unit and the housing unit,
We realized more accurate sound quality adjustment.



Format: dynamic type Driver: φ8.8mm
Output sound pressure level: 98dB / 1mW
Play frequency band: 10 ~ 22,000Hz
Maximum input: 100mW
Impedance: 18Ω
Plug: φ3.5mm gold-plated stereo mini plug cord length: about 120cm (Y type)
Weight: about 11g (including cable)


Black, Blue, Red, Silver, White



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