AD828 is an improved version of NE5532, delivering much better performance in a power amplifier module. Single power supply operation with a dualpurpose design for flexible and convenient use. Built from quality materials with quality for reliable performance and longevity. The separated potentiometer version is easy to install and is not restricted by the spacing between casings. 23 practical use scenarios DIY audio projects: upgrade a NE5532based power amplifier module to gain improved performance in a compact singlesupply design. Home audio systems: aging amplifier modules to achieve cleaner signal and better reliability without changing the power architecture. Enclosures with tight spacing: install the separated potentiometer version to allow external gain/control adjustment without being limited by casing spacing.