3.1-channel configuration: The system provides three full-range speakers plus a subwoofer, for richer sound than a 2.1 setup.
“X-Bass” technology branding: The GS-801 is advertised with enhanced bass output, meaning it’s designed to emphasize low frequencies for home theatre/music use.
High “PMPO” rating: One listing claims a 15,000 W PMPO (peak music power output) for this model.
Multimedia & connectivity support: It seems to support multiple inputs (likely USB, SD card, Bluetooth and/or auxiliary) typical of modern home theatre systems.