Featuring trickle-down acoustic technology from PSB’s most iconic speaker designs, the AM5 powered speaker includes a custom designed driver set with a ¾” aluminium ferrofluid-cooled tweeter and a 5 ¼” midbass woofer that together deliver a rich and detailed full-range sound. You can listen to favourites on vinyl with a built-in phono preamp, or stream music and playlists with high-quality Qualcomm aptX Bluetooth. It’s PSB legendary sound, for everything you listen to and enjoy. 5 ½” (133mm) Black steel polypropylene midbass woofer. ¾” (19mm) Aluminium ferro-fluid cooler tweeter with front waveguide. Built with a high-performance Class D amplifier with 50 watts. Acoustically engineered cabinet with a tuned port for low bass. Built-in phono preamp with a rear RCA input for turntables. Qualcomm aptX for high-quality Bluetooth streaming. Rear mounted volume control, sub out, and AUX inputs.