Lab.gruppen PLM 20000Q - Manual (Page 24)

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Signal Flow and Lake Processing
PLM Series Quick Start and Field Reference Guide Rev 1.3.5
5.3 Modules and Frames
5.3.1 Overview
A Frame represents one physical Lake Processor (e.g. PLM 10000Q). A maximum of two Modules are
contained within each Frame; these are referred to as Module A and Module B. The number of Modules
shown in a given Frame is dependent upon the signal processing configuration of that Frame.
Each Module can be configured as a Classic Crossover (Bessel, Butterworth, Linkwitz-Riley), as a Linear
Phase Crossover, or as multiple full bandwidth Auxiliary Outputs. The default configuration for the PLM is
2 x 2-Auxiliary Output Modules, providing a total of four Module outputs.
Please refer to the Lake Controller Operation Manual for further information.
5.3.2 LoadLibrary ™ and Fingerprints
In addition to the standard loudspeaker presets (Module files), the Lake Controller also includes a set of
enhanced Module files specifically for use with the PLM Series.
These supplementary PLM Module files, known as the LoadLibrary incorporate both Lake DSP parameters
along with PLM specific data; LoadLibrary Module files include parameter settings for the PLM’s Amplifier
Gain and ISVPL limiter. Additionally, LoadLibrary loudspeaker types may also include data relating to the
electrical characteristics of a particular loudspeaker.
Electrical characteristic data is used to enable load verification (LoadSmart) and monitoring facilities
(SpeakerSafe) to be performed on the PLM. This data set is termed a Fingerprint. When a PLM-specific
loudspeaker type is loaded, its Fingerprint load characteristics are included. These load characteristics are
stored in a file with a “.mdl” suffix and are loaded simultaneously with the module file.
5.3.3 Super Modules
Super Modules allow control of multiple Modules of the same type, distributed across multiple Frames, as
a single entity within the Lake Controller software. A change made in the Super Module is replicated across
all assigned Modules, resulting in improved efficiency in system configuration and a reduction of on-screen
icons within the Lake Controller software.
The key benefit of this feature is the ability to connect and control crossovers, levels and EQ across multiple
hardware devices simultaneously from the Lake Controller. For example, one device may be driving sub and
low-frequency speakers, while another device controls mid-range and hi-frequency drivers. Using a single
adjustment the crossover points between the two devices can be changed simultaneously.
Please refer to the Lake Controller Operation Manual for further information regarding Super Modules.