AVIXA Recognized AV Technologist Test

A distribution amplifier is used to _____.

1. increase the power to each loudspeaker in a distributed audio system

2. split one input into multiple isolated outputs, each with the same signal level

3. increase the bandwidth available to transport video signals

4. divide the power sent to AV devices evenly among the available outputs

The correct answer is: split one input into multiple isolated outputs, each with the same signal level

A distribution amplifier is specifically designed to take a single input signal and distribute it to multiple outputs without compromising the quality of the signal. This ensures that each output receives the same signal level and maintains isolation from one another to prevent crosstalk and interference. By preserving the strength and integrity of the signal, a distribution amplifier is particularly useful in systems where high-quality audio or video needs to be delivered to various endpoints. In audio applications, for instance, a distribution amplifier allows a single audio source, like a microphone or a mixer output, to be connected to multiple speakers throughout a venue. Each speaker receives the same audio level as the original signal, which is crucial for maintaining overall sound quality. Likewise, in video applications, distribution amplifiers ensure that a single video source can be sent to several monitors or projectors without degradation of the signal. The other options do not accurately reflect the function of a distribution amplifier: - The first choice refers to increasing power to loudspeakers, which is more aligned with a power amplifier's purpose. - The third choice suggests increasing bandwidth for video signals, a function associated with video scaling or processing equipment. - The fourth choice implies power division among outputs, a characteristic more similar to passive splitters than to the active amplification