Digital Two-Channel TV Amplifier with IR learning and Sub Out TVA2.1 Better Sound for TV! Control with your TV remote. The Russound TVA2.1 is a digital 2-channel low-profile amplifier designed expressly for integrating with flat panel televisions. The TVA2.1 delivers smooth, robust sound for an enhanced viewing experience. On-board IR learning allows its volume to be seamlessly controlled by the TV or cable box's remote control. Its thin footprint means the TVA2.1 can be hidden behind the television or mounted in an in-wall panel behind a television for convenience. The built-in IR learning function eliminates the need for an external control system. This can dramatically reduce the cost of adding additional rooms of audio to a home and keeps the operation simple and intuitive for the homeowner by letting them use their current remote control device. The TVA2.1 features three input options for flexibility. A traditional analog RCA line level input, and both Digital Coax and Optical S/PDIF. The TVA2.1 supports up to 24bit/96khz digital audio in a PCM stereo format.