Kanto YU4 Powered Speakers with Bluetooth and Phono Preamp. Whether you're hanging out with friends or kicking it solo, YU4 ensures you're always in good company. Producing 140W peak power, its Class D amplifier effortlessly fills your room with rich, spacious sound. Carefully designed 4 Kevlar drivers and 1 silk dome tweeters faithfully reproduce your favorite tunes, letting you enjoy them to their fullest. Packed with connectivity, YU4 makes it easy to throw on your latest vinyl with a built-in phono preamp or sit back and stream your carefully curated playlist via Bluetooth. Crystal-clear, detailed sound for all to enjoy. Up to 70W of Total RMS Power 2-Way Speaker Design 4 Kevlar Woofers 1 Silk Dome Tweeters Dual 1.25 Flared Bass Ports Bluetooth with apt X RCA with Phono, 1/8 AUX, 2x Optical In RCA Subwoofer Output 60 Hz to 20 kHz Frequency Response MDF Cabinet Features: Bluetooth APTX Built-in Bluetooth with Qualcomm apt X technology lets you enjoy high-quality streaming from the palm of your hand. Phono Preamp Equipped with an integrated phono preamp, YU4 can be easily connected to any vintage or modern-day turntable. Remarkable Sound Enclosed in handcrafted cabinets, YU4's 1 silk dome tweeters and 4 Kevlar drivers deliver crisp highs and wonderfully balanced mid-range, faithfully reproducing all your favorite tunes. Simple Interface YU4's user-friendly interface features a single knob. Rotate for volume, push in to cycle through the five inputs or push and hold to activate and deactivate standby mode. Signal detection YU4 features automatic standby and power-up modes, helping to conserve power when you're gone and ensuring you never miss a beat when the music starts playing.