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1/2" Digital Tape
1/2" Analog Tape
1/4" Analog Tape
1/4" Longitudinal...
1"C Videotape
16mm Film
16mm Magnetic Print
17.5mm Film
2.0 Mono
2.0 Stereo
3-stripe Mag
3/4" Videotape
35/32mm Film
5.1 Multi-channel Audio
6.1 Multi-channel Audio
7.1 Multi-channel Audio
8-track Cartridge

6.1 Multi-channel Audio

From Chace Audio

6.1 refers to multi-channel audio intended to be monitored through seven channels: six full frequency range (20Hz to 20KHz) channels intended as front Left, Front Center, Front Right, Left Surround, Center Back, and Right Surround, and one frequency limited (below 120Hz) channel for the LFE (Low Frequency Effects), or Subwoofer track.

The Center Back speaker can also be output through two speakers to take advantage of home theater systems with 7.1 capabilities. For an example of a home theater 7.1 speaker configuration that can also be utilized for 6.1 multi-channel audio, see