Users can also control the R&S®UPZ audio switcher directly from a PC via its RS-232-C or USB 2.0 interfaces.

A special feature is measuring the crosstalk of the individual channels of multichannel amplifiers, which requires a particularly critical measurement.

For this application, the signal coupled into a channel will be measured while all other amplifier channels are driven at the same time. The output switcher enables users to switch signal path B through to all channels in parallel, while signal path A can be switched to any selectable channel.