Alpine CDE-154BT Advanced Bluetooth CD Receiver built-in MOSFET amplifier (18 watts RMS CEA-2006/50 peak x 4 channels) plays CDs, including discs loaded with MP3 and WMA files | 2-line display with variable color illumination Bluetooth hands-free calling and audio streaming | Siri integration with Eyes Free mode | built-in iPod, iPhone, and iPad control 9-band parametric equalizer with 11 presets | Bass Engine SQ button with choice of five bass profiles | high- and low-pass filters with subwoofer level and phase control compatible with Sirius XM satellite radio tuner | inputs: rear USB port and front auxiliary input | outputs: 6-channel preamp outputs (4-volt front, rear, subwoofer)