> 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/bose.md).

# 🗃️ BOSE

- [QC3 (Passive Mod)](https://itsgreq.gitbook.io/headphone-measurements/bose/qc3-passive-mod.md): Electronics bypassed and EMF shields removed from microphones for less interference with driver.
- [QC15](https://itsgreq.gitbook.io/headphone-measurements/bose/qc15.md)
- [QC25 - NC On](https://itsgreq.gitbook.io/headphone-measurements/bose/bose-qc25-nc-on.md): Aside from the lack of treble energy, not too bad at all.
- [QC25 - NC Off](https://itsgreq.gitbook.io/headphone-measurements/bose/bose-qc25-nc-on/bose-qc25-nc-off.md)