An impressive trait of audio maker PS Engineering is its drive to improve and advance products that would otherwise remain cutting edge for years to come. It seems every time I evaluate one of its feature-packed audio panels, a new model with more capability comes along a year later.

This year at AirVenture, PS Engineering introduced the $2395 PMA450, a slide-in replacement for the company’s PMA8000-series audio panel. It’s a product that I thought had more than enough functionality and features—perhaps more than some pilots use.