X-i50 BT is the company’s entry-level solid-state integrated amp. It’s a 50W-per-channel design that has Bluetooth and there’s an on-board MM phono preamp as well. The X-i50 BT is packing serious RCA real estate around the back, the built-in MM phono stage (a screw-on terminal for the stubby aptX Bluetooth antenna), as well as CD, Tuner and Aux. Pre-out and Rec-out are also provided and there’s even a USB-A port that can be used to play MP3 files or charge a smartphone or tablet.