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2.2 AUDIO CONNECTIONS
There are two methods of transmitting audio signals: Analog and Digital. Analog is an electrical waveform
representation of sound and requires one cable for each channel. Digital represents sound using a sequence
of numbers and requires only one cable for all channels.
Any input can be changed from the factory setting to either Digital or Analog audio connection.
Furthermore, any one set to analog can be used with Digital Signal Processing for bass management,
bass/treble control, time alignment, surround modes, and THX post-processing, or be set to Direct and
bypass all digital stages. As well, Auto-Dig uses the digital connection when there’s a digital signal at
the input, and when there isn’t, it switches to analog connection with DSP. For more information see
sections 3.2, 3.3, 3.5, 4.7, and 4.8.
Digital Audio Inputs and Outputs:
Digital audio source components can be connected with a coaxial, optical, balanced, or HDMI cable. These
carry 2-channel PCM, Dolby Digital, and DTS. The HDMI inputs also accept up to six channels of PCM.
Use the HDMI inputs if your display has HDCP-compliant HDMI or DVI input, otherwise use the coaxial or
optical inputs. The AVM 50 also provides one balanced AES/EBU connection, which is used on professional
equipment. Any digital input can be assigned to any number of Sources that are set to ‘Digital’. To change
digital audio connection from the factory default assignments, see section 3.5.
Digital Rec-Out can provide a signal to the digital audio input of a Mini Disc recorder, CD recorder, etc., from
any Source set to ‘Digital’ (except HDMI) or ‘Anlg-DSP’ – see sections 3.5 to 3.7.
Analog Audio Inputs:
Analog audio connections are made with RCA or XLR cables.
If you are going to use ZONE2, ZONE3, or RECORD, connect both the digital and
analog outputs from the
source components. ZONE2, ZONE3, and RECORD require analog connection unless they’re set to ‘copy’
MAIN (see sections 3.5 and 4.3).
6-Ch Analog Input:
The 6-Ch input is for connecting DVD-Audio and multichannel SACD players. When 6-Ch is selected, the
video signal from DVD input is routed to the video outputs by factory default – to change this, see section 3.5.
2. CONNECTIONS continued …
Should you need
audio from the HDMI
output to your display,
it’s 2-channel PCM.