2. Introduction
6
PLM+ SERIES Operation Manual rev 3.0.1
2. Introduction
2.1. Welcome
Thank you for choosing the Lab.gruppen PLM+ Series of Powered Loudspeaker Management systems for your
For fast installation and use of this product, your welcome package includes a printed copy of the PLM+ Series
Quick Start Guide which contains the information required to safely install the product and place it in service.
Control and editing features are accessible via the front panel interface or via the included Lake Controller software.
It is recommended that the Quick Start Guide and all product documentation is reviewed to ensure familiarity with
the various configuration and control options.
2.2. Main Features
The PLM+ Series incorporates a number of sophisticated technologies to ensure the best possible performance
2.2.1. Amplifier Platform
The PLM+ Series also incorporates Lab.gruppen’s exclusive Rational Power Management (RPM), which allows
Any channel in either model is capable of delivering higher outputs than the average 25% of the total power.
requirements for touring loudspeaker systems.
2.2.2. Amplifier DSP (Digital Signal Processor)
Various features of PLM+ Series devices are controlled by the on-board DSP, some of which are summarized in
this section.
The PLM+ 20K44 and 12K44 amplifiers feature four channels of Lab.gruppen's unique and patented
Class TD
®
output stages, and high-efficiency Intercooler
®
copper-finned cooling system. The PLM5K44
uses a newly developed Class D technology design with increased efficiency and sustained sonic perfor-
mance. All models have a regulated Switch Mode Power Supply (R.SMPS™) with unparalleled Power Factor
Correction (PFC) extremely close to one, and a full suite of protection features including the Breaker Emulation
Limiter (BEL).
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