# 🗃️ KOSS

- [1010 Heritage](/headphone-measurements/koss/1010-heritage.md)
- [HV/99 (Interfunk)](/headphone-measurements/koss/hv-99-interfunk.md): Dayum... Should be less bassy with stock foam. But this is fun too.
- [HV/X](/headphone-measurements/koss/hv-x.md)
- [K/6X Plus + On Ear Pads](/headphone-measurements/koss/k-6x-plus-+-on-ear-pads.md): It's something
- [K/6X Plus + Aftermarket MDR-1A Pads](/headphone-measurements/koss/k-6x-plus-+-on-ear-pads/k-6x-plus-+-aftermarket-mdr-1a-pads.md)
- [K6/LC](/headphone-measurements/koss/k6-lc.md)
- [KO/747](/headphone-measurements/koss/ko-747.md)
- [Porta Pro](/headphone-measurements/koss/koss-porta-pro.md)
- [Pro/450](/headphone-measurements/koss/pro-450.md)
- [Pro4/AA](/headphone-measurements/koss/pro4-aa.md): Old deflated pads create a VERY unreliable graph
- [Koss Pro4/AA + pressure applied](/headphone-measurements/koss/pro4-aa/koss-pro4-aa-+-pressure-applied.md): Artificial pressure applied with elastic to force a strong bass seal between pads and silicone ears
- [Pro4/AA + Fostex T50RPmkII Pads](/headphone-measurements/koss/pro4-aa/pro4-aa-+-fostex-t50rpmkii-pads.md): Much more reliable graph, and almost no deviation from pressurized stock pad sound.
- [Tech/2](/headphone-measurements/koss/tech-2.md)
