QSC Audio CX Series user manual Heat Emissions

Page 15

HEAT EMISSIONS

Essentially, a power amplifier draws electrical energy from the AC mains, converts it to DC, and then converts it again into an analog of the input signal to send out to the loudspeakers. Any AC power that enters the amplifier through the power cord and does not exit through the speaker outputs turns into heat, which the amplifier must rid itself of by exhausting it to the outside. In indoor use this may present a sizeable challenge to a building’s air conditioning system. Use the table below to predict the heat that will be emitted by your amplifier.

 

 

 

 

Full Power

1/3 Power

1/8 Power

 

Idle

 

Model

Channel Load

BTU/hr kcal/hr

BTU/hr

kcal/hr

BTU/hr

kcal/hr

BTU/hr kcal/hr

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CX4, CX4T

8

+ 8

645

163

615

155

510

128

85

22

 

 

 

4

+ 4

1265

318

1060

267

830

210

85

22

 

 

 

2

+ 2

2340

590

1700

429

1295

326

85

22

 

 

 

70V + 70V

1365

344

1050

264

800

202

85

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CX6, CX6T

8

+ 8

1406

354

1020

257

604

152

229

58

 

 

 

4

+ 4

2525

637

1617

408

921

232

229

58

 

 

 

2

+ 2

4658

1174

2532

638

1290

325

229

58

 

 

 

70V + 70V

2010

507

1503

379

1141

288

229

58

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CX12, CX12T

8

+ 8

1791

452

1239

312

805

203

297

75

 

 

 

4

+ 4

3330

840

2081

525

1222

308

297

75

 

 

 

2

+ 2

5698

1437

3146

793

1611

406

297

75

 

 

 

70V + 70V

3772

951

2338

589

1280

323

297

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat emissions of CX

amplifiers under various

conditions

14

Image 15
Contents CX Series Table of Contents Explanation of Graphical Symbols Speaker Output Shock Hazard Rack Mounting PrecautionsLifting Precautions Speaker DamagePortable rack II. Overall DescriptionCX4 Caused by a floating input III. InputsIV. Outputs Input SensitivitiesOutput connections for CX, bridged mono mode CX4 and CX4T AC PowerControls & Displays VI. OperationCX6, CX6T, CX12 and CX12T TroubleshootingCX6, CX6T, CX12 & CX12T Problem OverheatingPage CX4 and CX4T BRIDGED-MONO Mode CautionAC Current Consumption Maximum LONG-TERM Output PowerHeat Emissions Protection Circuits Output Regulation VII. SpecificationsFrequency Response Damping FactorInput Impedance Power RequirementsVoltage Gain Input SENSITIVITY, VrmsWeight DimensionsVIII. Distributed lines Line for different power levelsIX. Designing the Distributed Sound System Loudspeaker Coverage and PlacementPage Determining Power Levels IntelligibilityRequires Example Selecting the AmplifierUsing Components with Different Voltages Or 64 speakers tapped at 5 watts, etc How Many Speakers?Watts for the speakers 25 x 1.25 =Speaker Transformer Saturation XI. Other Design ConsiderationsPower Transfer Coefficient = RLOAD/RWIRE + RLOAD2 Wire LossPage Heat Emissions XII. Address & Telephone Information

CX Series specifications

QSC Audio, a recognized leader in professional audio solutions, presents the CX Series of amplifiers, a fusion of power, efficiency, and cutting-edge technology designed to meet the demands of various sound reinforcement applications. Known for their reliability and outstanding performance, the CX Series amplifiers are perfect for installations in venues, theaters, and houses of worship, delivering high-quality audio reproduction regardless of the setting.

At the core of the CX Series is its robust Class D amplification. This technology not only ensures excellent audio fidelity but also enhances energy efficiency, resulting in lower operational costs and cooler running temperatures. The amplifiers utilize a linear power supply, which contributes to exceptional audio quality by providing stable and clean power to the components. With varying power ratings, including options ranging from 200 to 1200 watts per channel, the CX Series caters to different venue sizes and specific audio requirements.

The CX Series is engineered with a range of features that enhance usability and performance. Integrated DSP (Digital Signal Processing) allows users to access advanced sound processing algorithms, enabling fine-tuning of audio settings for optimal performance. The amplifiers include comprehensive protection circuitry to safeguard the equipment from thermal overload, short circuits, and signal clipping, ensuring longevity and reliability in demanding environments.

Connectivity is also a significant aspect of the CX Series. The amplifiers are equipped with a variety of input and output options, including XLR, 1/4" TRS, and barrier strip connectors, facilitating seamless integration with a wide range of audio sources and speakers. Moreover, the user-friendly interface includes LCD displays for easy monitoring, making setup and adjustments straightforward for audio engineers and technicians.

Another defining feature of the CX Series is its lightweight design. This portability makes installation and transport easy without compromising on performance. Additionally, QSC’s commitment to sustainability is evident in the design, as the amplifiers are constructed with environmentally friendly materials and have a reduced carbon footprint, aligning with modern practices in eco-conscious audio engineering.

In summary, the QSC Audio CX Series amplifiers blend professionalism with versatility, delivering exceptional performance that satisfies both audio quality and operational reliability. Their innovative technologies and thoughtful design make them a powerful ally for professionals in any sound reinforcement scenario.