Section 4: Specifications

Power amplifier management

Power amplifier interface

Compatibility

QSC Data Port equipped amplifiers

Connector and cable

 

 

HD-15 VGA cable, 2 meters length

 

qualified (for longer runs, contact

 

QSC’s Technical Services Department)

 

 

Amplifiers

16 amp channels grouped in pairs

 

Amplifier status monitor

Clip indicator

Senses channel clipping

Bridge mode status

Sense bridge mode setting

Protect indicator

Senses amplifier protect status

Temperature meter

Reports amplifier operating

 

temperature

Over-Temp. Alert

Software adjustable threshold

 

 

AC power control

 

AC mode control

Switches amplifier between

 

normal and standby mode

AC power indicator

Indicates operate, standby, or

 

power-down mode

Control room foldback monitoring

Signal monitoring buses

1

(per CM16)

 

 

 

Number of Channels

4

 

 

Internal signal tap points

 

Pre-fader input signal

16

Post-fader input signal

16

Power amplifier output

16

 

 

Monitor input

Mixed with tap point signal at

 

unity gain

Nominal level

+4 dBu

Maximum level

+21 dBu

Input impedance

10 kOhm balanced

Configuration

Electronically balanced, shield

 

connected to chassis

Common-mode rejection

Typical, >50 dB, 20 Hz - 20 kHz

 

Worst case, >40 dB, 20 Hz-20kHz

Output

Sum of Monitor input and

 

signal from internal monitor

 

tap point

Frequency response

25 Hz–20 kHz ±0.5 dB

Distortion

<0.05% THD @ +4 dBu out

Noise floor

-90.5 dB

Nominal level

+4 dBu

Maximum level

+21 dBu

Output impedance

75 Ohms balanced

Output load

600 Ohms minimum

Configuration

Active balanced

 

 

Level

Adjusts amplitude of signal from

 

tap point

Monitor in to monitor out

0 dB, ±0.5 dB

Control range

-95.5 to 0 dB in 0.5 dB steps

Contact closure inputs and outputs

Inputs

1 discrete input (RLY/TRG IN)

Configuration

Single-ended input

Resistance for closure detect <1kOhm max

Resistance for open detect

>5 kOhm min

Input Voltage Limit

7.000 VDC maximum

Output

1 discrete output (RLY OUT)

Configuration

Electromechanical relay, dry

 

contacts, floating, C, NC, NO

Steady-state current (max.)

0.5 A

Switched current (max.)

0.25 A

Ground isolation

70 volts maximum

“-” input terminal connected to chassis

Connector

“Phoenix-style” (a.k.a.“Euro-style”)

 

 

 

detachable terminal block connectors

34

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Image 34
QSC Audio CM16a manual Power amplifier management, Control room foldback monitoring, Contact closure inputs and outputs

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.