Check your to see if the driver is recognized. Try a different USB port (avoid USB hubs).
Sum signals from factory head units that have pre-filtered outputs. 💡 Pro Tips for Successful Tuning epsilon dsp 6.4 software download
Ensure you are downloading the 64-bit or 32-bit version compatible with your Windows OS. Check your to see if the driver is recognized
Ensure the DSP is powered on (Remote-in wire must have 12V). epsilon dsp 6.4 software download
To ensure your hardware communicates correctly with your PC, you need the official tuning suite.
Visit the official Soundstream Support or Precision Power websites.