QSC Audio CM16a manual Introduction- Detailed Description of Functions

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Section 1: Introduction- Detailed Description of Functions

AUDIO FUNCTIONS

Audio Inputs- These are the 3-pin terminal block connectors used for balanced line level audio-signal input. This type of connector is sometimes called“Phoenix”or “Euro” style.

Input Sensitivity- Sets the sensitivity of the Audio Inputs to either 1 Volt or 3 Volts (r.m.s.). This selection should coincide with the level of the audio signal provided for each channel.

Input Source: Normal/Page- Selects the input source for each channel. Normal input is the audio connected at the Audio Input terminals. Page input is the audio provided by the Paging Input Module.

Level Control- Provides adjustment of the signal level delivered to the amplifier for each channel. Adjustment is from -95.5dB to 0dB in 0.5 dB steps.

Meter-These points are indicators of where in the audio path the software can “meter” the audio.

Mute- Actively mutes the audio signal being passed by a channel. No signal is delivered to the amplifier when a channel is muted.

Parallel Mode- When parallel mode is selected, the input to the first channel is also applied to the second channel. When in parallel mode, the input is ALWAYS from the first (or odd numbered) input. The second (or even numbered) input is ignored; this includes the PAGE signal. This feature is useful for sending one input signal to both amplifier channels without having to wire jumpers between the two input connectors. This mode is automatically enabled by the CM16a when the amplifier bridge mode is set to any of the parallel modes available (see amplifier manual for details).

Polarity- Determines the polarity of the signal delivered to the amplifier for each channel.

AUDIO MONITOR CHAIN FUNCTIONS

Pre-Fader Monitor- Monitors the audio path at the point before the Level Control block (i.e. the input to the CM16a).

Post-Fader Monitor- Monitors the audio path at the point after the Level Control, Mute, and Polarity blocks (i.e. the output from the CM16a).

Amplifier Monitor- Monitors the audio at the output of the amplifier (i.e. the speaker terminals of the amplifier).

Off- This selection disconnects the monitor for the channel.

Level Adjust- Provides adjustment of the signal level deliv- ered to the Monitor Module from each of the selectable “tap” points of a channel’s audio path. Adjustment is from -95.5dB to 0dB in 0.5 dB steps.

Monitor Module- This module functions as a four-input mixer with software selection of the input channels. The four selected channels are summed with the external input, Monitor Chain In. For each of the inputs, the “tap” point is selectable from the pre-, post-, amplifier and off positions.

AMPLIFIER CONTROL FUNCTIONS

Standby/ Operate- Controls the amplifier’s power status-

ON- amplifier operational

STANDBY- amplifier in standby mode

NOTE! The amplifier must be powered in order to respond to any commands issued by the CM16a. This means the amp’s power switch must physically be in the ON position.

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Contents CM16a Amplifier Network Monitor ¨ Warning ¨ Table of Contents CM16a Amplifier Network Monitor Federal Communications Commission FCC Information Series are not supported by the CM16a Introduction- OverviewPhysical Characteristics Introduction- Physical Characteristics & LayoutRS-232 port for network and firmware utilities Introduction- Physical Layout DiagramFunctional LISTING, Block Diagram & Detailed Descriptions Introduction- List of Functions & FeaturesIntroduction- Block Diagram part Introduction- Block Diagram part Introduction- Detailed Description of Functions Amplifier Monitoring Functions Introduction- Detailed Description of FunctionsRS-232 Port Functions Introduction- Network Description Introduction- Sample Network Topologies Introduction- Sample Network Topologies Location Considerations Installation- Basics and MountingWhat is Included in the Carton UnpackingConnecting AC Power Installation- Mounting and AC PowerConnecting Audio Inputs Installation- ConnectionsConnecting the Monitor Chain IN/OUT Connecting page InputConnecting the RLY/TRG Connecting the RLY OUTConnecting to 4-CHANNEL Amplifiers Connecting to the RS-232 PortConnecting to 2-CHANNEL Amplifiers Installation- Rear Panel Detail Port Connected LED’s Operation- LED IndicatorsSTART-UP Behavior and Preset Operating Operation- General Information & PresetsMost up-to-date information Operation- Recalling Presets Using RLY/TRGHOW to put the CM16a into Bypass Mode #2 Operation- Bypass Modes and Switch LocationHOW to put the CM16a into Bypass Mode #1 Operation- Serial Port I/O Interface RS-232 Communications ProcedureXon/Xoff Only Required for Attaching to Existing Networks IP Address AssignmentThis is the basic procedure for opening a Telnet session Operation- Telnet AccessFuse Replacement Operation- Fuse ReplacementSpecifications- Dimensions Power amplifier output processing SpecificationsInput Signal Processing Contact closure inputs and outputs Power amplifier managementControl room foldback monitoring General RS232 PortARCHITECT’S and ENGINEER’S Specifications Ethernet Cabling Appendix- Ethernet Cable PinoutsRS-232 Pinout Appendix- DataPort Pin-out & Connector P-N’sPin Signal Description How to Contact QSC Audio Products
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CM16a specifications

The QSC Audio CM16a is a versatile and powerful amplifier designed to meet the demands of professional audio applications. Known for its reliability and performance, the CM16a is ideal for both live sound and installation scenarios, offering a perfect blend of advanced technology and user-friendly features.

One of the standout features of the CM16a is its Class D amplifier architecture. This technology ensures not only high efficiency but also a lightweight design, making it easier to transport and install in various settings. The amplifier delivers an impressive output power of 1600 watts at 4 ohms, providing ample headroom for demanding audio applications. The CM16a is capable of handling multiple speaker configurations, making it a flexible choice for various setups.

Another key characteristic of the QSC CM16a is its advanced thermal management system. This built-in feature ensures the amplifier operates within safe temperature limits, enhancing reliability and extending the lifespan of the unit. The CM16a also includes an intelligent protection circuit that safeguards the amplifier from overload and short circuits, allowing users to operate it confidently even during intense performances.

The CM16a comes equipped with multiple inputs and outputs, including XLR and TRS connectors, enabling seamless integration with a range of audio sources and systems. This versatility allows for easy connection to mixers, microphones, and instruments, making it suitable for diverse applications from concerts to corporate events.

In addition to its robust performance, the QSC CM16a features an intuitive front panel design with LED indicators for quick monitoring of system status and performance. Users can easily adjust levels and settings, ensuring optimal audio quality for any given situation.

The amplifier is also designed with efficiency in mind, incorporating Power Factor Correction (PFC) technology. This enhances power usage, reducing operational costs while minimizing environmental impact.

In conclusion, the QSC Audio CM16a stands out as a premier choice for audio professionals seeking a reliable, high-performance amplifier that can deliver exceptional sound quality. With its Class D technology, advanced protection features, versatile connectivity, and user-friendly design, the CM16a is a worthy investment for any audio application. Whether for live sound reinforcement or permanent installations, the CM16a promises to meet the needs of even the most demanding audio environments.
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