Update 'README.md'

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Miel Truyen 2021-10-17 11:58:19 +00:00
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@ -28,6 +28,13 @@ Create a DIY speaker.
- [Mopidy](https://mopidy.com) (alternative for tizonia, probably bad)
- [Adafruit 20W Amplifier](https://learn.adafruit.com/adafruit-20w-stereo-audio-amplifier-class-d-max9744/assembly)
# BOM Small 20W version
### BOM Small 20W version
- [20W Stero AMP board](https://www.amazon.de/-/en/Adafruit-Amplifier-Short-Circuit-Protection-Microcontroller/dp/B07L6B671Y/ref=sr_1_3?dchild=1&keywords=max9744+Stereoverst%C3%A4rker%2C+20+W%2C+Klasse+D&qid=1634330107&sr=8-3)
- 2x [20W Speaker Cone (midrange)](https://www.amazon.de/-/en/Visaton-FR-10-HM-black/dp/B003A63NLE/ref=sr_1_12?dchild=1&keywords=mittelt%C3%B6ner+lautsprecher&qid=1634330361&sr=8-12)
### BOM Next
- [iQaudio DigiAMP+](https://www.raspberrypi.com/products/iqaudio-digiamp-plus/) (Currently out of stock everwhere 16/10/2021)
### Features to figure out
- Battery packs
- Low-pass / High-pass filtering (after amp like most passive speakers do, or before amp like the SBRoar does?)