System Overview - Lexicon 300L - REV Owner's Manual

300L Owner's Manual

System Overview

Digital
In
XLR
RCA
OPT
Analog
In
0.0 or +16dB
-10 to +10dB
Rear Panel
Input Level
Gain Switch
Control
2-6
The 300L presents you with an incredible number of choices — all of which can
be made from the LARC. Although you could certainly operate the 300L by
setting each I/O configuration and effect parameter by hand each time you use
it, you probably wouldn't enjoy it — so we've tried to organize the 300L so that
its considerable flexibility doesn't become an obstacle. Before digging into the
details of operation presented in this manual, you may find this brief overview
useful.
The block diagram shown below illustrates the basic flow of audio through the
300L. Analog and/or digital audio enters on the left. Each is conditioned and
translated as required and, in the case of digital audio, a sample clock is
extracted. The resultant digital audio streams are sent to effect processing, then
converted to appropriate analog and digital outputs (on the right).
48 kHz
44.1 kHz
PLL
Digital
In
SR
Emph
A/D
Panel, MIDI and Time Code
As you can see from the figure, the 300L has a rich set of I/O capabilities, with
many choices available to the user, including:
Sample Rate
Analog or Digital Input connector
Digital and Analog Emphasis/De-emphasis
Digital Output format (AES or SPDIF)
Digital Copy (SCMS) and Emphasis bit manipulation
Processor Configuration
The I/O organization is part of the 300L's Control Mode. Other items which form
part of the global operaton of the box are: Time Code event list viewing and
editing, MIDI Mapping Tables, Purge functions for User Registers,Copy Tools,
and Bypass button functions.
Sample Rate
(SR)
Effect
DSP
DSP
Program Change
Lexicon
Digital
Out
SR
XLR
Digital
RCA
Out
OPT
SR
Analog
Emph
D/A
Out
-10 to +10dB
Output Level
Control