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Customising 562: overview 14
562 User Guide
• whether the unit has video switching
• whether there is a Meridian CD player in 200 mode. See page Error!
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Details of these are described in the sections referred to.
Config: sources and inputs
In Config you can also make selections to do with sources, e.g.
• how many inputs will be active
• which sources you can select
• which key on the remote control selects which source
• the Logo for that input on the 562 display
• the physical input connection to 562 including by implication whether
they are analogue or digital.
• the secondary analogue input for any digital source
• the comms type of the source, i.e. whether it is a Meridian controllable
source like CD or Radio
• the address for that source product
Gain: an overview
Gain mode is quite different from Type or Config in that the preamplifier
actually functions in this mode. In Gain the front panel controls operate
normally – with the exception of the Volume keys.
Gain is used to adjust the level of analogue sources fed to the A/D
converter.
Digital inputs have a fixed sensitivity defined by the digital data. Analogue
inputs however should have their levels adjusted so that the best use is
made of the dynamic range of the Analogue–to–Digital converter built in to
562. Best results will be obtained if the analogue gain for each input is set
to provide the largest signal that does not cause overloading or clipping.
The ‘flat response' analogue inputs like Radio, Video etc. have four
choices for sensitivity; 0.5V, 1.0V 2.0V and 2.5V for full-scale. Phono
inputs using the optional Moving-Coil or Magnetic (MC or MM) module in
input A1, also have four settings.
Note An important feature of Gain is that you can adjust the analogue
input and output settings while listening to the music. When you feel you
have the correct combination of settings you can revert to Normal which
protects the settings.
Note The input sensitivities for the 562 digital preamplifier are not
expressed in the same way as those for analogue counterparts. Caution
should therefore be used in comparing these sensitivities. The input level
for the 562, in common with other digital equipment is expressed in terms
of full-scale in the digital signal – i.e. more equivalent to the input overload
point of an analogue preamplifier. See specifications on page 33.
To use Gain, see
page
23
.
For more details
on analogue input
levels see page
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