> For the complete documentation index, see [llms.txt](https://itsgreq.gitbook.io/headphone-measurements/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://itsgreq.gitbook.io/headphone-measurements/sennheiser/hd-25-1-ii.md).

# HD 25-1 II

Many thanks to [Angelic ](https://www.head-fi.org/members/angelic.10777/)for the loan.

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