> 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/hd545-reference.md).

# HD545 Reference

<figure><img src="https://31762434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M4NrSugToAwYkW0a8hV%2Fuploads%2FRlaOlBToS4wq3AuSeCQE%2FSennheiser%20HD545%20Reference.jpg?alt=media&amp;token=71ab9759-5554-44c7-a3fe-6ac4857acb01" alt=""><figcaption></figcaption></figure>