Panasonic VBR220 Which Audio Connection Should I Use?, Connector, Description, Quality, type

VIZIO VBR220 User Manual

Which Audio Connection Should I Use?

If you are not using HDMI, which carries both the video and the audio signal, you have three options for connecting your Blu-ray DVD Player: Digital Coaxial, Digital Optical, or Analog. Based on your home theater configuration, you can decide which option is the right one for you.

Connection	Connector	Description
Quality
(type)
		Digital Coaxial (or coax) carries the digital audio signal using
Best		shielded copper wire and connects with RCA jacks, which stay
		firmly connected. Coaxial cables may be susceptible to
(digital)		interference so 'hum' problems in the system components. The
		cable carries all available audio channels—left/right stereo and 5.1-
		channel surround sound.
		Digital Optical (also known as Toslink) carries the digital signal
		using a red light beam through plastic fiber optic cable. Optical
Best		cables are not susceptible to interference but are more fragile than
		coax cables and cannot be bent or pinched. The ends of an optical
(digital)
		cable use an odd-shaped connector that is not as secure as a
		coaxial cable with RCA jacks. The cable carries all available audio
		channels—left/right stereo and 5.1-channel surround sound.
Compatible		Analog consists of two cables for transmitting audio: one red and
		one white. It is capable of transmitting stereo sound and while it
(analog)		provides good sound, it is lower quality than HDMI or one of the
		digital options. So try to use one of those connections first.

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