> 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/ultrasone.md).

# 🗃️ ULTRASONE

- [HFI-450](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/untitled-76.md): Quick n' dirty left-channel only measurement
- [HFI-700 + ATH-M50 Pads](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/untitled-75.md)
- [HFI-2000  ( +HE500 pads )](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/hfi-2000-+he500-pads.md): Puts the new Ultrasone flagship models to shame \*cough\* Edition 15 \*cough\*
- [HFI-2000 (+ Aftermarket HE500 pads)](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/hfi-2000-+he500-pads/hfi-2000-+-aftermarket-he500-pads.md): Very dark sound, mids are very distant and smooth. Weirdly but interesting.
- [HFI-2000 (+ Aftermarket HE560 Pads)](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/hfi-2000-+he500-pads/hfi-2000-+-aftermarket-he560-pads.md): Good compromise of sound and comfort. Modern Ultrasone doesn't compare.
- [HFI-2200 ULE](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/hfi-2200-ule.md): 'null' value at 9kHz really does take the edge off... Ultrasone used to have a thing going...
- [Zino](https://itsgreq.gitbook.io/headphone-measurements/ultrasone/zino.md): Classic S-logic