Sign up to obtain Bose e-mails and communications for exceptional benefits, promotions and new product or service info. The Sony ULT Discipline seven is a giant, powerful, expensive speaker that sounded far too boomy and bloated in one of its sound modes and far too muddy in the opposite. https://www.bluetoothspeaker.top/usb-radio-mp3-bass-subwoofer-amplifiers-portable-wireless-speaker/