Constructed with premium components and designed with decades of award-winning acoustics, the AM3 powered speakers deliver full-range sound with zero distortion thanks to their 4” midbass drivers and ¾” aluminium ferrofluid-cooled tweeters for crystal-clear highs. With a built-in phono preamp you can connect a turntable without extra components or gear, while still being able to stream music from any app or device with high-quality Qualcomm aptX Bluetooth. 4” (100mm) Black steel polypropylene midbass woofer. ¾” (19mm) Aluminium ferro-fluid cooler tweeter with front waveguide. Built with a high-performance Class D amplifier with 35 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.