The PS604A and PS404A are both four-channel PowerShare amplifiers featuring built-in AmpLink technology. PowerShare amps are said to be particularly well-suited for conferencing using the Bose ControlSpace EX-1280C signal processor with its eight AmpLink digital outputs, or for all kinds of large and small venues where high-quality digital audio is key. AmpLink pipes audio between equipment in racks, with up to 10m cable lengths between connections.
Each model offers digital audio transport using standard CAT5 cables and RJ-45 connectors to carry up to 24 channels of 48kHz digital audio. Each AmpLink termination point features a THRU connection for daisy-chaining up to eight devices. The AmpLink addition gives the amplifiers a new level of flexibility where not only can they asymmetrically distribute power into zones as necessary, but the amplifiers can be easily connected to one another and a DSP via AmpLink.