Denon HEOS Link Wireless Pre-Amplifier For Multi-Room Audio - Series 2 (New Version) Amazon Alexa Compatibility Powered Subwoofer Connection Black with Silver 2.91 x 6.14 x 5.83

Hi Res Audio/ BluetoothWireless Pre AmpifierOptical Digital USB 3.5mm andAnalog (RCA) inputsOptical Coaxial Line Level andAuto Detect Subwoofer OutputIR Output and 12V Trigger Output