- 4:3 16:9 Mono 1.0 Stereo 2.0 Headphones 2.0 Stereo 2.1 Surround 3.0 Surround 4.0 Surround 4.1 Surround 5.0 Surround 5.1 Surround 6.0 Surround 6.1 Surround 7.1 Pass Through