Published Examples

Successful Mods of Single Dynamic-Driver Earphones Performed and Described by James444

Alpex HSE-A2000 —  balancing reduction of bass and treble

JVC FD01 with DIY filters — dampening with swabs

JVC HA-FX850 — with great explanations of the physics

Pioneer CH3 — treble reduction only

Note: The principles of these mods are universal.

Many purists think, single DDs sound better than multis. James444 writes:

“…To borrow a metaphor from photography: BA timbre reminds me of a slightly over-sharpened picture. Impressive, contrasty and eye-popping, but not necessarily all that realistic…”

He continues (while stating his remarks being subjective):

“…: for instance, that I intuitively and predominantly would pick DDs for classical, whenever I had several different IEMs at hand. And that upon switching from DDs to BAs, I would always need some time to adjust to BA timbre. Whereas the adjustment would happen almost instantly, when switching the other way round from BAs to DDs…”

I wish “Happy Modding”!
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  • Published Examples 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”.