Klipsch R-610F and Denon AVRX550BT 5.1 Surround System 1 x Denon AVR-X550BT: 130W x 5ch (6 ohms, 1%, 1ch driven) / Bluetooth / HDMI 2.0a / 4K Ultra HD / 5/1 HDMI inputs/outputs / HDCP 2.2 support 1 x Pair R-41M Bookshelf Speakers: 1" Aluminum LTS tweeters, 90×90 Square Tractrix Horns, 4? Spun-Copper IMG Woofers 1 x Pair R-610F Floorstanding Speakers 1 x R-52C Centre Speaker: 1? Aluminum LTS tweeter, 90×90 Square Tractrix Horn, Dual 5.25? Spun-Copper IMG Woofers 1 x R-100SW Subwoofer: 10? Front-Firing Spun-Copper IMG Woofer, All-Digital Amplifier with 300 Watts Peak Power, Volume, Low Pass Crossover and Phase Control, Line Level/LFE RCA Inputs for Maximum Receiver Compatibility. What's in the box 1 X Klipsch R-610F and Denon AVRX550BT 5.1 Surround System