Operation Manual

2. Introduction
C SERIES Operation Manual rev 3.0.0
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2. Introduction
2.1. Welcome
Thank you for choosing LAB GRUPPEN C Series power ampliers for your sound reinforcement system
installation. We are condent that you will be very pleased with the performance, conguration exibility, reliability,
and long-term durability offered by the C Series products.
This manual provides a comprehensive guide to the features and functionality of C Series model C 88:4, C 68:4,
C 48:4, C 28:4 and C 16:4 ampliers. Please read through it in its entirely to become fully acquainted with the
many conguration options and multiple layers of protection circuitry.
To facilitate timely installation and use of this C Series product, we have included a Quick Guide Overview
(section 4). This brief summary, in conjunction with Installation (section 3), contains the basic information needed to
safely install the amplier and place it in service. However, we highly recommend reading through this manual in its
entirety, beginning with Main Features and Technologies and continuing through Operation and Performance. As
you become thoroughly familiar with all aspects of operation, you may learn of features or options that will affect
your choices on amplier modes or loudspeaker system conguration.
LAB GRUPPEN C Series power ampliers are designed and built specically for the unique demands of permanent
installation applications. C Series ampliers offer the optimum combination of high-quality audio reproduction,
exible features, ease of installation, and 100% reliability in normal use.
By packing four or eight channels of recongurable power amplication into a 2U chassis, the C Series achieves
unprecedented power and channel density. The benets of compact dimensions include reduced rack space
requirements and minimal heat build-up. The exible output stages enable each amplier channel to be set for
either low impedance or constant voltage (70 V / 100 V) mode. NomadLink, an easy-to-use network for monitoring
and control, is implemented as a standard feature on all C Series ampliers.
Although C Series features and facilities are tailored to installation applications, at the heart of each amplier is the
same advanced technology that has made LAB GRUPPEN the benchmark of quality for touring concert systems:
exceptional sonic performance, rugged construction, proven reliability, and protection features that anticipate every
unwelcome possibility.
NOTE: This manual is shipped with C Series amplier models C 88:4, C 68:4, C 48:4, C 28:4 and
C 16:4. All references to “C Series” in this manual apply to all four of these models. A different
manual is shipped with models C 20:8X, C 10:8X, C 10:4X and C 5:4X. References to C Series in this
document may or may not apply to these C...X models.