Introduction - Lexicon 300L - REV Owner's Manual

Introduction

Congratulations on your purchase of the 300L Digital Effects System with LARC
Remote Interface! The 300L not only contains the finest sounds, as you've come
to expect from Lexicon, it incorporates new functions that satisfy the needs of
today's audio production.
Analog and Digital Audio Interfacing
For both analog and digital use the 300L takes full advantage of recent advances
in converter technology and combines them with flexible digital interfacing.
The A/D and D/A converters use oversampling techniques to minimize low-level
distortion and provide linear phase characteristics. 64x oversampling Delta/
Sigma conversion is used in the A/Ds; 8x oversampling is used in the D/As. The
result is sonic transparency without the artifacts normally encountered in
conversion.
The digital I/O simplifies interfacing with both the AES/EBU professional and the
EIAJ consumer format. XLR, RCA and Optical connectors are provided for both
input and output. The digital inputs of the 300L will automatically accept and lock
to any AES/EBU/SPDIF format; the 300L's digital output format is user-select-
able for feeding either professional or consumer equipment. This allows for
format conversion as well as using the high quality A/D converters to feed digital
recorders. Control of additional Channel Status information is provided as well.
Dual DSP Architechture
The 300L utilizes two proprietary high performance DSP engines. The configu-
ration of these engines can be determined by the end-user to suit a particular
audio application. The Single Setup configuration unites both DSP engines.
Two "split" configurations: Dual Mono and Cascade, allow each DSP engine to
run a special program especially designed for "Split " applications. The Single
algorithms include: Random Hall, Random Ambience, Rich Plate, Stereo Pitch
Shift, and Stereo Adjust. The "split" algorithms include: Dual Delays, Chamber,
Mono Pitch Shift, Compressor, a special mastering dither program called PONS
(Psychoacoustically Optimized Noise Shaping), and a less extensive version of
Stereo Adjust.
Comprehensive Effects Automation
The 300L makes effects automation available in three different ways. If you use
time code, the 300's Event List and Time Code Reader add a new twist to effects
processing. Each entry in the 50-item list contains a time code value and a 300L
effect preset/register number, allowing incoming time code to trigger setup and
effect changes, as well as setup and effect parameter glides. For changing
effects in music or changing rooms and environments for film and video, the
300L's time code capability opens new avenues to all time code users.
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Dynamic MIDI is included for real-time performance control and effects auto-
mation. All parameters in the 300L can be patched to most MIDI controllers,
allowing full control from remote devices. For full MIDI automation all parameter
changes can be recorded on any sequencer. For additional control, complete
System Exclusive information is available.