Modding Limitations

What Cannot Be Done — The Problematic Upper Midrange

by Jürgen Kraus

3 kHz peaks may introduce unpleasant hardness and fatigue, but they effectively cannot be safely removed with a reversible mod. Some drivers may respond to micropore tape on the nozzle: it is therefore worth a try to either cover the nozzle grille with 80-90% of micropore tape or remove the screen with a needle, tape completely over with micropore tape and poke a hole near the edge…as described in the treble section.

modding limitations

Tip: Sometimes it is the metal filter that causes the harshness and removing it solves the problem. If that does not help, stuff some dampening material such as foam or cotton balls down the nozzle or try the micropore mod described above.

The Blitzwolf mod fitting the above diagram is described here. It is not reversible — don’t try it at home.
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  • Modding Limitations 1

    Head-Fier since 2016. He has been known as “Otto Motor” to Head-Fiers, as “Dr. Schweinsgruber” to users and Youtubers, and as “Brause” to Super Best Audio Friends and the Headphone Community. - For the purpose of confusion, he decided to pose under his real name Jürgen Kraus (“JK”) from now on. - This is a hobby. In “real” life, Jürgen is a professional geologist operating his own petroleum-exploration consulting company Franconia Geoscience Ltd. (see ad in the footer) based in Calgary, Canada. He holds German and Canadian passports. Jürgen had a classical music education from childhood through high school in Germany and he has been following popular music developments since the late 1970s. His understanding of arts and crafts was influenced by Bauhaus pragmatism: “less is more” and “form follows function”.