First DIY boombox build! Four 5.25” speakers and two tweeters with a Sony car stereo powered by a 12V, 18Ah battery. It sounds great and gets pretty loud for a portable boombox. :
12 V DIY Autoradio Bluetooth Audio Stereo Player LED Visualizzazione Lirica Telefono AUX IN MP3 FM/USB/Radio lettore di Schede di Controllo remoto Modul|mp3 fm|usb usbmp3 mp3 - AliExpress