i3le/USB2Speakon
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@ -4,10 +4,6 @@ A fully self contained, USB powered ~5W PMPO[^1] Class-D amplifier inside a Spea
This adapter allows you to connect your phone / laptop / $USB-audio-host-capable device to any passive loudspeaker that accepts a Speakon plug.
In my tests it reached volumes significantly above "room volume". Its output power is probably enough to host a small indoor party.
> [!WARNING]
> It's not recommended to reproduce this project in the current state, as v0.1 contains some issues and v0.2 is not yet tested.
> Here be dragons.
<p float="left" style="display: flex; flex-wrap: wrap; align-items: center;">
<img src="doc/USB2Speakon.JPG" width="49%" />&nbsp;
@ -28,9 +24,10 @@ The .step file can be found in the root of the repo and [the full design is on O
- Android phones produce less volume than PCs. Idk why exactly, but it appears to be a software limitation, it's not limited by USB power.
- On some Android phones it's way too quiet though, there you can use [this shady volume booster app](https://play.google.com/store/apps/details?id=com.goodev.volume.booster) that actually manages to increase the output volume in that case.
- The project was designed for the now discontinued NL4FX. It is unclear if it would mechanically fit inside the new NL4FXX.
- v0.1 has a 3225 footprint for a 6MHz crystal. No 6MHz crystal is available for that footprint tho.
- ~~v0.1 has a 3225 footprint for a 6MHz crystal. No 6MHz crystal is available for that footprint tho.~~
- This has been fixed in v0.2 with an oscillator.
## Pictures in use
![USB2Speakon in use](doc/in_use.JPG)
[^1]: ~~Peak Music Power Output~~ Panel Melting Power Once
[^1]: ~~Peak Music Power Output~~ Panel Melting Power Once