The Alpine PXE-DSP App is an Android-based application developed by Alpine Electronics of America INC. This app is a free utility tool that provides advanced wireless digital signal processing control for the PXE-0850S. The app uses Bluetooth® connectivity to adjust time-correction, crossover, and equalization features. Additionally, the app allows you to share tuning configurations with other users.

The PXE-DSP App is a must-have for anyone looking for a superior DSP control system for their PXE-0850S. The app's Bluetooth® connectivity ensures that you can make adjustments from a distance and get the best sound quality. The app's easy-to-use interface makes it accessible for all users. Overall, the Alpine PXE-DSP App is an excellent utility tool for anyone who wants to get the most out of their PXE-0850S.