> 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/hifiman/untitled-41/hifiman-he-500-+-modified-akg-k551-pads.md).

# HE-500 + Modified AKG K551 pads

• All pleather was peeled off the top of the pad

• Pleather on the inside of the pad was left untouched

• Foam spacer rings added to increase depth of pad

All significant peaks are smoothed out. Tonality is borderline warm.&#x20;

<figure><img src="/files/nKS64lXvH0984B33uxI1" alt=""><figcaption></figcaption></figure>
