SPL MMC1, User Manual

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9
The Sections In Detail
Source
The Source section is subdivided into two parts. At the left are the input selectors, which
are fed to the mastering path. Here the MMC 1 can accept four stereo inputs and four
8-channel inputs. The Return button allows to switch between the selected input (four
stereo/four multi-channel) and the selected return (eight stereo/eight multichannel). The
returns consist of selection options for returns from recorders, DAW, analog multi-tracks,
SACD and DVD-Players, TV, AC3/DTS encoder/decoder, and so on. The return inputs from
the rear Stereo Return A slot are provided by the Stereo Return buttons A-D, the returns
from the rear Stereo Return B slot are provided by the Stereo Return buttons E-H.
All Input buttons allow for switching between the input monitoring mode and the output
monitoring mode. Press once, the input button is permanently illuminated. The output
signal after the Master fader is monitored. Press again, the input button fl ashes. The
input signal before the input trim is monitored. This way, you can easily compare what
comes in and what goes out of the console.
IMPORTANT: Selecting the input monitoring mode (input button fl ashes) overrules the
Return mode.
NOTE: All MMC 1 buttons allow for individual labelling.
Input
Signals selected in the Source section are routed to the Input section. A passive routing
switch, which can route individual channels to any other channel—a function that is
essential to achieving the differing channel confi gurations of surround formats.
A table gives an overview of the most important channel confi gurations:
DTS: L / R / LS / RS / C / LFE / L
t/o
/ R
t/0
Film: L / LS / C / RS / R / LFE / L
t/o
/ R
t/0
SDDS: L / LC / C / RC / R / LFE / LS / RS
The MMC 1 buss structure follows SMPTE/ITU channel confi gurations:
SMPTE: L / R / C / LF / E / LS / RS / L
t/o
/ R
t/0
Note: L
t/o
and R
t/0
explained: The appendix “t” means “total” and refers to the auto-
matic stereo downmix function within AC3-encoders, whereas the appendix “o” means
“only” and stands for a separate stereo mix.
>
Inputs
Returns
Source
Stereo
M-CH.
Stereo
Input
A
Stereo
Return
A
Return
Stereo
Return
E
Stereo
Input
B
Stereo
Return
B
Stereo
Return
F
Stereo
Input
C
Stereo
Return
C
Stereo
Return
G
Stereo
Input
D
Stereo
Return
D
Stereo
Return
H
M-CH.
Input
A
M-CH.
Return
A
M-CH.
Return
E
M-CH.
Input
B
M-CH.
Return
B
M-CH.
Return
F
M-CH.
Input
C
M-CH.
Return
C
M-CH.
Return
G
M-CH.
Input
D
M-CH.
Return
D
M-CH.
Return
H