HD RadioTM/ SiriusTM/ AM/FM Tuner RT1084 HD RadioTM/ SiriusTM/ AM/FM Tuner FEATURES It was only a matter of time before radio finally came under the digital gun. Rotel’s advanced RT1084 takes advantage of all of the latest tuner technology, including HD RadioTM and SiriusTM, to provide you with a solid audio performance unlike any analog tuner before it.