1.888.955.6000
 
 

Looking for home theater receivers?

Home Theater ReceiversStart shopping

Surround Sound Decoding Chart

By 
Surround format Number of channels Types of channels Type of media with which the format may be used
Dolby® Pro Logic® 4
  • 2 discrete, full-bandwidth channels (front left and right)
  • 1 matrixed, full-bandwidth channel (center)
  • 1 matrixed, limited-bandwidth channel (surround left and right)
  • stereo and Dolby Surround-encoded VHS movies and broadcast TV programs
  • can be downconverted from any Dolby Digital source
Dolby Pro Logic II 5.1
  • 2 discrete, full-bandwidth channels (front left and right)
  • 3 matrixed, full-bandwidth channels (center, surround left and right)
  • 1 subwoofer channel via Pro Logic II's bass management
  • stereo and Dolby Surround-encoded VHS movies and broadcast TV programs
  • stereo music
  • some video games
Dolby Digital up to 5.1
  • 5 discrete, full-bandwidth channels (front left and right, center, surround left and right)
  • 1 discrete LFE channel (subwoofer)
  • all DVDs
  • some broadcast HDTV
  • some satellite and cable TV
  • some video games
DTS® 5.1
  • 5 discrete, full-bandwidth channels (front left and right, center, surround left and right)
  • 1 discrete LFE channel (subwoofer)
  • some DVDs are DTS-encoded
  • some CDs are DTS-encoded
DTS Neo:6 up to 6.1
  • 2 discrete, full-bandwidth channels (front left and right)
  • 3 or 4 matrixed, full-bandwidth channels (center, surround left and right, and back surround)
  • 1 subwoofer channel via DTS Neo:6's bass management
  • most audio sources connected to a Neo:6-capable receiver
Dolby Pro Logic IIx up to 7.1
  • 2 discrete, full-bandwidth channels (front left and right)
  • 5 matrixed, full-bandwidth channels (center, surround left and right, and back right and left surrounds)
  • 1 subwoofer channel via Pro Logic IIx's bass management
  • most audio sources connected to a Pro Logic IIx-capable receiver
Dolby Pro Logic IIz up to 9.1
  • 2-7 discrete, full-bandwidth channels, depending on audio source (front left and right, center, surround left and right, and back right and left surrounds)
  • 2-7 matrixed, full-bandwidth channels, depending on audio source (front right height, front left height, center, surround left and right, and back right and left surrounds)
  • 1 subwoofer channel (discrete, or via Pro Logic IIx's bass management, depending on audio source)
  • most audio sources connected to a Pro Logic IIz-capable receiver
Dolby Digital EX 6.1
  • 5 discrete, full-bandwidth channels (front left and right, center, surround left and right)
  • 1 matrixed, full-bandwidth channel (back surround)
  • 1 discrete LFE channel (subwoofer)
  • some DVDs are Dolby Digital EX-encoded
  • regular Dolby Digital 5.1 DVDs can also be used with a Dolby Digital EX decoder
THX Surround EX™ 6.1
  • 5 discrete, full-bandwidth channels (front left and right, center, surround left and right)
  • 1 matrixed, full-bandwidth channel (back surround)
  • 1 discrete LFE channel (subwoofer)
  • can decode any Dolby Digital or Dolby Digital EX source
  • can be used to enhance Pro Logic, Pro Logic II, DTS, or DTS-ES decoding
DTS-ES™ 6.1
  • 6 discrete, full-bandwidth channels (front left and right, center, surround left and right, and back surround)
  • 1 discrete LFE channel (subwoofer)
  • some DVDs are DTS-ES-encoded
  • regular DTS 5.1 DVDs can also be used with a DTS-ES decoder
Dolby Digital Plus 7.1
  • 7 discrete, full-bandwidth channels (front left and right, center, surround left and right, and back left and right surround)
  • 1 discrete LFE channel (subwoofer)
  • some Blu-ray discs are encoded with Dolby Digital Plus
  • can be downconverted for playback on a 5.1-channel system
Dolby TrueHD (lossless) 7.1
  • 7 discrete, full-bandwidth channels (front left and right, center, surround left and right, and back left and right surround)
  • 1 discrete LFE channel (subwoofer)
  • some Blu-ray discs are encoded with Dolby TrueHD
  • can be downconverted for playback on a 5.1-channel system
  • as a lossless format, offers sound that's "bit-for-bit" identical to the original recording for more detailed, accurate surround sound
DTS-HD™ 7.1
  • 7 discrete, full-bandwidth channels (front left and right, center, surround left and right, and back left and right surround)
  • 1 discrete LFE channel (subwoofer)
  • some Blu-ray discs are encoded with DTS-HD
  • can be downconverted for playback on a 5.1-channel system
DTS-HD Master Audio (lossless) 7.1
  • 7 discrete, full-bandwidth channels (front left and right, center, surround left and right, and back left and right surround)
  • 1 discrete LFE channel (subwoofer)
  • some Blu-ray discs are encoded with DTS-HD Master Audio
  • can be downconverted for playback on a 5.1-channel system
  • as a lossless format, offers sound that's "bit-for-bit" identical to the original recording for more detailed, accurate surround sound

Learn more about surround sound formats

Gift Card The Great Gear Giveaway

Sign up for our email newsletter and then enter to win a $500 Rewards Card.