Ultralink TS-4 Speaker Selector - 140 Watts MaxUltralink speaker selector is a device which is an efficient, cost effective way of expanding an audio system at home or commercial venues (bars, cafes, restaurants, shops, conference rooms etc.) into a complex multi room sound system. The TS4 can work with a single audio source and 4 zones. Each zone can be independently activated or deactivated. The speaker selector distributes audio signals from an audio source (amplifier, receiver etc.) to