Upgrade your audio with a power amp and immerse yourself in huge sound. Fill every inch of a room with your music. With constantly improving sound quality and attention to detail, many power amps have become an integral part to home theatre systems. As the last step before delivery to the loudspeaker, you'll want to make sure you get the best possible sound. Shop manufacturers like Bryston, Gryphon, Mcintosh, Naim and more.