This XWB (Extra Wide Band) driver with 8mm diaphragm offers 5-45kHz frequency response. Compared with the IE800 released in 2012, this new model is built with pure Titanium diaphragm and better driving technology, and has been applied in Hi-End earphones with Hi-Res certification.
What’s the difference with the 7.8mm XWB driver
There some major improvements on the structure and sound characters:
- Physical strength improvements
- The front cover changed to stainless steel
- Add a protective copper ring to the diaphragm (and increase the outsize from 7.8mm to 8mm)
- Upgrade of the diaphragm to a pure Titanium diaphragm made in Germany (note it’s not Titanium Plated diaphragm used in many low-mid end earphones)
- 1~1.5dB increase on the overall sensitivity
- +2.5dB on low/mid bass, which is now more punchy and deep
- -5dB on 7-9kHz to effectively suppress the harmful sibilant
- Extend the high-treble at 10Khz and 15Khz- 20kHz, and increase airyness
Some limits you should know
- 3kHz mid is a little bit emphasized (+2dB), meaning the vocal getting more obvious.
- Impulse response latency is slightly longer (+0.2ms) due to the low-bass extension.
- Pure Titanium diaphragm needs ~10h time to burn-in.
Measurement is based on an , a and Win10 PC running oftware.
Frequency Response measurement
Note the driver have output even at 18kHz+, the benefit of pure Titanium diaphragm!
CSD (Cumulative Spectral Decay), i.e., the waterfall diagram. Notice the decay rate at 500hz-20Khz is very consistent, meaning less interference among bass, mid and treble.
Cumulative Spectral Decay
Impulse response – notice the response duration is extremely short <1.4ms, meaning the response of this driver is very good.
Burst Decay – notice the consistency among all the bands