Pioneer VSX-531 5.1-Channel AV Receiver with Built-in Bluetooth Ultra HD (4K/60p/4:4:4) pass-through with HDCP 2.2 Advanced Sound Retriever for dynamic response from compressed music Built-in Bluetooth 140 watts/channel amplifier (6 ohms, 1 kHz, THD 1.0 %, 1ch Driven)