Creative Sound Blaster Omni 5.1 (SB-OMN-51) Creative sound blaster omni 5.1 sound blaster audio, with usb simplicity featuring a built-in dual microphone array for crystal-clear voice communication and sbx pro studio audio technologies, and a studio-grade 600ohm headphone amplifier, the sound blaster omni surround 5.1 is for anyone looking to seriously upgrade their pc or mac audio experience.