PPI vs DLS DSP CONTROL

PPI-D is the companion app for the DSP (Digital Signal Processor) of Precisionpower.  You can use it to configure your DSP device.

DLS DSP Control provides precise and intuitive control of compatible DLS car audio DSP products — directly from your smartphone. Designed for both everyday listening and advanced audio tuning, the app features a clean and structured interface for adjusting your car audio system with accuracy and ease. Built around the DLS Natural Sound philosophy, it enables detailed sound customization without unnecessary complexity. Control and optimize your car audio setup with full access to essential DSP functions, including input routing, crossover configuration, equalizer (EQ), output level control and time alignment. All controls are clearly presented, allowing real-time tuning and immediate audio feedback. Key Features • Control compatible DLS car audio DSP products via smartphone • Advanced car audio tuning and sound control • Input routing and crossover configuration • 31-band equalizer (EQ) per channel • Output level control and time alignment adjustment • Bluetooth wireless control • Fast and responsive user interface Advanced DSP Functions • Adjustable crossover (HPF / LPF / BPF: 20 Hz – 20 kHz) • Selectable crossover slopes (6–48 dB/octave) • Crossover types: Bessel, Butterworth, Linkwitz-Riley • Time alignment (0–15 ms / 0–519 cm / 0–204 in) • Selectable phase (0° / 180°) • 10 memory presets Getting Started When using the DLS DSP Control app for the first time, enter the default password: 88888888 After inputting the password, it can be changed.