QSC Audio 1700, 1100 Cable Power Loss Damping Length Gauge Resistance, Factor, Speaker Wire Table

Page 14

loss of 10% is barely audible, the resultant low damping factor will prevent the amplifier from fully controlling the peaks and dips in frequency response caused by speaker impedance variations. This will result in greater coloration and muddiness.

Cable

Wire

Cable

Power Loss,

Power Loss,

Damping

Damping

Length

Gauge

Resistance

8Ω Load

4Ω Load

Factor,

Factor,

 

 

 

 

 

8Ω Load

4Ω Load

5 ft.

18

0.063Ω

0.79%

1.58%

78

39

 

16

0.040Ω

0.50%

1.00%

100

50

 

14

0.025Ω

0.31%

0.63%

123

62

 

12

0.016Ω

0.20%

0.40%

143

71

 

10

0.010Ω

0.13%

0.25%

160

80

10 ft.

18

0.126Ω

1.58%

3.15%

48

24

 

16

0.080Ω

1.00%

2.00%

67

33

 

14

0.050Ω

0.63%

1.25%

89

44

 

12

0.032Ω

0.40%

0.80%

111

56

 

10

0.020Ω

0.25%

0.50%

133

67

20 ft.

18

0.252Ω

3.15%

6.30%

27

14

 

16

0.160Ω

2.00%

4.00%

40

20

 

14

0.100Ω

1.25%

2.50%

57

29

 

12

0.064Ω

0.80%

1.60%

77

38

 

10

0.040Ω

0.50%

1.00%

100

50

40 ft.

18

0.504Ω

6.30%

12.60%

15

7

 

16

0.320Ω

4.00%

8.00%

22

11

 

14

0.200Ω

2.50%

5.00%

33

17

 

12

0.128Ω

1.60%

3.20%

48

24

 

10

0.080Ω

1.00%

2.00%

67

33

 

8

0.050Ω

0.63%

1.25%

89

44

80 ft.

16

0.640Ω

8.00%

16.00%

12

6

 

14

0.400Ω

5.00%

10.00%

18

9

 

12

0.256Ω

3.20%

6.40%

27

14

 

10

0.160Ω

2.00%

4.00%

40

20

 

8

0.100Ω

1.25%

2.50%

57

29

160 ft.

14

0.800Ω

10.00%

20.00%

10

5

 

12

0.512Ω

6.40%

12.80%

14

7

 

10

0.320Ω

4.00%

8.00%

22

11

 

8

0.200Ω

2.50%

5.00%

33

17

320 ft.

12

1.024Ω

12.80%

25.60%

8

4

 

10

0.640Ω

8.00%

16.00%

12

6

 

8

0.400Ω

5.00%

10.00%

18

9

Table 3.69 Speaker Wire Table

14

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Page 13 Page 15
Contents Owner’s Manual B L E O F C O N T E N T S SafeguardsPrecautions AvisWelcome Warranty and DisclaimersIntroduction Overview of Amplifier1100 1200 1400 1700 SpecificationsInput Impedance Crosstalk Controls Indicators Cooling Frequency ResponseUnpacking and Inspection Important PrecautionsII Basic Instructions Quick Instructions Front View Back ViewIII Operation CoolingSee illustrations in .3 for location AC RequirementsInput Connections 34a 1/4-inch RTS Balanced Output Connection 36 1/4-inch Quasi-balanced Output Connection Octal Module Accessories Input Switches and Mono BridgingMono Bridge Precautions Speaker ConnectionsFactor Cable Power Loss Damping Length Gauge Resistance69 Speaker Wire Table 25 and 70 Volt Systems Protection Features73 70 Volt Output Power OutputOperational Troubleshooting No SoundUnwanted Noises DC Protection IV Speaker ProtectionBackground Horn Driver ProtectionRMS Power Ohm 16-ohm Load Power CapacityPower Limiting User ResponsibilityUser Maintenance Maintenance and ServiceCleaning Obtaining ServicePage D I O

1200, 1700, 1400, 1100 specifications

QSC Audio has long been a revered name in professional audio, and its series of amplifiers—including the QSC 1100, 1200, 1400, and 1700—continues to showcase the brand's commitment to quality, performance, and innovation. Each model is designed to meet the diverse needs of audio professionals, whether for live sound, installations, or studio use.

The QSC 1100 amplifier is renowned for its lightweight and compact design while delivering a solid 1100 watts of power. It features QSC's advanced Class D technology, which not only provides high efficiency but also significantly reduces heat generation. The 1100 includes comprehensive protection circuitry, ensuring safe operation in all situations. With a Frequency Response of 20 Hz to 20 kHz, the amplifier offers a balanced and clear sound profile, making it suitable for various applications.

Moving up the line, the QSC 1200 offers increased power output at 1200 watts and comes equipped with advanced DSP (Digital Signal Processing). The DSP allows users to tailor the audio output precisely, delivering optimized performance for any setting. In addition to its robust power, the 1200 features a versatile input section, supporting both XLR and 1/4" TRS connectors, providing flexibility for any audio source.

The QSC 1400 amplifier is a workhorse in the series, capable of producing up to 1400 watts, making it ideal for larger venues and events. This model is designed with enhanced thermal management, ensuring reliability even during extended use. The 1400’s high-frequency response capabilities further improve its adaptability, handling complex audio signals with ease.

Lastly, the QSC 1700 stands as the powerhouse of this lineup, delivering a remarkable 1700 watts of clean, distortion-free audio. It boasts an advanced cooling system, making it perfect for high-demand environments. The 1700 is also equipped with customizable limiter settings, allowing users to protect their speakers while maintaining sound integrity.

QSC’s commitment to durability is evident in all four amplifiers, featuring rugged chassis designs and high-quality components to withstand the rigors of professional use. Collectively, the QSC 1100, 1200, 1400, and 1700 amplifiers offer a compelling range of features that cater to various audio needs, all while ensuring superior sound quality and reliability, making them excellent choices for any sound engineer or venue manager.
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