Amazon.com: Polk Audio HTS 12 Powered Subwoofer with Power Port Technology | 12” Woofer, up to 400W Amp | For the Ultimate Home Theater Experience | Modern Sub that Fits in any
JBL Stage 800BA Enclosure Subwoofer Auto Amplificato - Compatto Cassa Attiva da 200 mm Bass Reflex con Amplificatore Harman Kardon di classe D da 100 Watt RMS : Amazon.it: Elettronica