Speaker And Line Level, Stereo, Audio Sensing System Switcher.The Smart AV is an ingenious and extremely versatile audio-sensing input switcher.Applications are numerous: automatic speaker-level switching of one pair of speakers between two amplifiers, automatic line-level switching of one stereo power amplifier between two preamplifiers, automatic line-level routing of two stereo sources to one line level input. Sensitivity and time-out periods are fully adjustable.The Smart AV is compatible with all Living Control systems and third-party amplifiers. SPECIFICATIONSOverview: Audio Sensing Line Level & Speaker Level System SwitcherApplications: Auto Switching Of Two Amplifiers / Preamplifiers Between One Pair Of SpeakersInputs:1 x 12v DC Trigger1 x Audio Sensing Stereo Speaker Level Input1 x Default Stereo Speaker Level Input1 x Audio Sensing Stereo Line Level Input- RCA1 x Default Stereo Line Level Input - RCAOutputs:1 x Stereo Speaker Level Output1 x Stereo Line Level Output