You'd be right in thinking that the factory, with its 200 million birds per year capacity, is now one of the largest single output poultry processing plants in the world. (ishidaeurope.com)
The included amp is single output and made to power this kit. (geekwrapped.com)
The paper describes a model of the brain based on simple processing units — neurons — that take two inputs and have a single output. (newscientist.com)