The APx58xB Series combines an award-winning user interface with Audio Precision’s legendary commitment to fast and accurate performance. APx’s user-friendly innovations include a range of connectivity options, two easy-to-use UI modes, one-click measurements, code-free automation, a sophisticated reporting engine, and multiple signal paths within a project The APx585B is a true multi channel audio analyzer, with 8 simultaneous analog outputs and inputs for testing multi channel audio devices. A multi channel analyzer allows not just faster testing, but also a complete picture of performance that a two channel analyzer with switchers might miss, such as output sag across channels during full power output tests or phase and crosstalk interactions. With the HDMI option, it is ideal for designing and testing consumer devices such as home theatre receivers.