For the best results, follow this setup sequence to ensure true 5.1 channel separation:

The blue status LEDs are notoriously bright. A simple "manual patch" is to replace the current-limiting resistors or use dimming stickers over the indicators. Step-by-Step Installation Manual

Automatically recognizes AC3/DTS/LPCM digital signals. Signal-to-Noise Ratio: Approximately 120dB. The "Patched" Experience: Common Hardware Fixes