Having been an avid Quest user, I have always paired my headsets with the Vive delux audio strap (DAS) to increase comfort and audio quality. Since I bought my Quest 2 with the elite strap, didn't want to buy another DAS to go with the headset, and have been mostly using it with my headphones
A few weeks ago, I stumbled on Valve's awesome blog post on how they protoyped their off ear audio solution, and their rational for choosing it over the traditional on ear headphones. The key component is their use of BMR drivers from Tectonic.
To see if something similar can be used on Quest 2, we quickly prototyped a very hacky version. Surprisingly, the 3.5mm audio jack output can handle the low impedance drivers (only 4ohms) just fine.
After few more days of modeling, we've designed the first 3D printable version of housing for the drivers, as well as the mount to the elite strap.
The mount offers two degrees of freedom for adjustment (up-down and front-back), which works well for our heads.
The drivers are housed in a simple ported enclosure, which can be optionally stuffed with damper to broaden resonance frequencies and increase the reach of the mid bass.
Since the drivers start to roll off below 100Hz, there's a bit less deep bass compared to my Senheiser 58X. But in return, I'm getting a ton of sound stage and very 'open' musical experience. The off ear set up also allows my ears to radiate heat, helping to keep my head cool.
I see now why Valve decided to go with this solution. This is now my favourite set up for those extended Beat Saber sessions!
Currently, the design is not very optimal:
- The drivers and enclosure need to be glued to the housing.
- The enclosure port is chosen arbitarily and needs tuning.
- Audio cables need to be soldered to the drivers.
We're planning to release the STL files for personal use, and purchasable parts on the store once we have an improved design.
In the mean time, if you'd like to beta test the current version and have a 3D printer, please contact us at firstname.lastname@example.org and we we'll send over the STL files.
UPDATE: the 3DF file is now avaible on prusaprinters. You do not need a Prusa printer, just open the models embed in the file and use your printer settings.
UPDATE 2: the 3d printed parts with custom audio cable are now in stock!
Non-3D printed parts
- 2x Tectonic TEBM35C10-4 BMR 2" Full-Range Speaker 4 Ohm (from Parts Express in US)
- 1m / 3 feet long 3.5mm Stereo jack to RCA cable that can be separated, so each channel can be soldered to a speaker (example).
- Optional open cell foam or cotton / wool to as stuffing material to dampen the drivers.
- Hot glue or superglue for attaching the drivers and enclosure.