What device combines the capabilities of a standard switcher with a distribution amplifier?

The correct choice is a matrix switcher, which effectively combines the functions of a traditional switcher and a distribution amplifier. A matrix switcher allows for multiple video and audio inputs to be routed to multiple outputs, enabling users to control which sources are sent to which displays or audio zones. This capability is essential in environments like conference rooms or large venues where different content needs to be shown on various screens.

In addition to switching, a matrix switcher typically includes distribution amplification features. This means it can ensure that the signals sent to the outputs are strong enough to maintain quality over long distances, mitigating potential signal loss. This dual function makes matrix switchers particularly valuable in complex audio-visual setups, as they simplify equipment needs while enhancing the reliability and flexibility of signal distribution.

The other options do not provide both functionalities as effectively. Line drivers emphasize the amplification aspect without the necessary switcher capabilities. Noiseless drivers focus mainly on ensuring audio quality but do not address switching functions. Signal amplifiers are designed solely for boosting signal strength but do not provide any switching capabilities. This makes the matrix switcher the most comprehensive solution in the context of the question.