Amplifier Current Draw—100 VAC

Current draw is the amount of AC current an amplifier demands while it is operating. Measurements are provided for various loads at idle, 1/8 of average full power, 1/3 of average full power, and full power, with all channels driven simultaneously. The figures shown on this sheet are for 120 VAC usage; for 230- and 100-volt operation, see the companion sheets. For typical usage, use the idle and 1/8 power figures. Where an asterisk (*) appears, the data was not available at press time. The designations "na" and "nr" respectively mean "not applicable" to the particular amplifier model and "not rated" for the particular load impedance.

 

 

Idle

 

 

1/8 Power

 

 

 

 

Current draw at

 

Current draw at 1/8 of full power is measured with pink

 

 

 

noise as a signal. It approximates operating with music or

 

 

idle or with

 

 

 

 

voice with light clipping and repesents the amplifier's

 

 

very low signal

 

 

 

 

typical "clean" maximum level, without audible clipping.

 

 

level.

 

 

 

 

Use these figures for typical maximum level operation.

 

 

 

 

 

 

 

 

8

4

2

25V-70V-100V

Model

 

Amperes

 

Amperes

Amperes

Amperes

Amperes

PL 218

 

0.96

 

5.88

9.24

14.28

 

PL 224

 

0.96

 

6

9.24

13.8

 

PL 230

 

1.08

 

7.08

11.04

15.84

 

PL 236

 

1.2

 

9.36

14.52

20.16

 

PL 3.4

 

1.08

 

7.68

12.96

19.8

 

PL 3.8X

 

*

 

*

*

*

 

PL 4.0

 

1.2

 

13.2

18.24

25.44

 

PL 6.0 II

 

3

 

12.36

18.6

28.56

 

PLX 1202

 

1.08

 

4.2

6.48

10.32

 

PLX 1602

 

1.08

 

6.12

9.6

14.28

 

PLX 2402

 

0.96

 

6

9.24

13.8

 

PLX 3002

 

1.08

 

7.08

11.04

15.84

 

PLX 3402

 

1.08

 

9.12

13.92

19.92

 

CX 302

 

1.08

 

4.2

6.48

10.32

 

CX 502

 

1.08

 

6.12

9.6

14.28

 

CX 702

 

0.96

 

6

9.24

13.8

 

CX 902

 

1.08

 

7.08

11.04

15.84

 

CX 1102

 

1.08

 

9.12

13.92

19.92

 

CX 302V

 

1.2

 

 

 

 

6.72

CX 602V

 

1.08

 

10.44

 

 

10.44

CX 1202V

 

1.2

 

9.24

14.28

 

14.28

CX 254

 

0.84

 

6.96

11.04

17.16

 

CX 404

 

0.84

 

9.72

14.88

nr

 

CX 204V

 

0.96

 

na

na

na

9.96

CX 168

 

0.72

 

7.68

12

nr

 

CX 108V

 

0.72

 

na

na

na

7.68

ISA 280

 

0.36

 

3.12

4.92

7.44

 

ISA 450

 

0.48

 

4.2

7.08

10.92

 

ISA 750

 

0.6

 

5.4

8.4

12.36

 

ISA 1350

 

1.44

 

7.68

12.12

17.4

 

ISA 300T

 

0.36

 

3.12

4.92

7.44

6.6

ISA 500T

 

0.48

 

4.2

7.08

10.92

8.28

ISA 800T

 

0.6

 

5.4

8.4

12.36

10.2

DCA 1222

 

1.08

 

4.2

6.48

10.32

 

DCA 1622

 

1.08

 

6.12

9.6

14.28

 

DCA 2422

 

0.96

 

6

9.24

13.8

 

DCA 3022

 

1.08

 

7.08

11.04

15.84

 

DCA 3422

 

1.08

 

9.12

13.92

19.92

 

DCA 1824

 

0.84

 

6.96

11.04

17.16

 

DCA 1644

 

0.84

 

9.72

14.88

nr

 

RMX 850

 

0.48

 

3.36

5.28

7.56

 

RMX 1450

 

0.48

 

4.44

7.2

11.16

 

RMX 1850HD

 

1.32

 

4.68

7.32

10.44

 

1/3 Power

Current draw at 1/3 of full power is measured with pink noise as a signal. It approximates operating with music or voice with very heavy clipping and a very compressed dynamic range.

8

4

2

25V-70V-100V

Amperes

Amperes

Amperes

Amperes

8.76

13.92

22.08

 

9.96

15.84

23.76

 

12.6

20.16

29.52

 

16.44

25.68

36.24

 

13.8

24.6

38.4

 

*

*

*

 

22.56

36.36

48

 

23.16

42.12

56.88

 

6.12

10.44

15.48

 

9.12

14.52

21.84

 

9.96

15.84

23.76

 

12.6

20.16

29.52

 

15.72

24.36

36.48

 

6.12

10.44

15.48

 

9.12

14.52

21.84

 

9.96

15.84

23.76

 

12.6

20.16

29.52

 

15.72

24.36

36.48

9.6

 

 

 

15.6

 

 

15.6

15

23.04

 

23.04

10.56

17.04

26.04

 

14.64

23.16

nr

 

na

na

na

15.24

11.88

18.12

nr

 

na

na

na

12.24

4.56

7.44

11.64

 

6.48

10.8

16.8

 

9.96

15.96

24.6

 

15

24.12

36.72

 

4.56

7.44

11.64

10.08

6.48

10.8

16.8

15.24

9.96

15.96

24.6

19.8

6.12

10.44

15.48

 

9.12

14.52

21.84

 

9.96

15.84

23.76

 

12.6

20.16

29.52

 

15.72

24.36

36.48

 

10.56

17.04

26.04

 

14.64

23.16

nr

 

4.92

7.92

11.04

 

6.48

11.52

17.64

 

8.28

13.44

19.92

 

Full Power

Current draw at full power is measured with a 1 kHz sine wave. However, it does not represent any real-world operating condition.

8

4

2

25V-70V-100V

Amperes

Amperes

Amperes

Amperes

14.52

24.6

39.6

 

19.08

32.04

49.32

 

24.48

41.16

62.76

 

30.96

50.88

72

 

29.88

50.4

82.92

 

*

*

*

 

42.96

69.12

99.84

 

47.16

81

125.64

 

10.08

16.68

26.64

 

15.12

25.44

38.64

 

19.08

32.04

49.32

 

24.48

41.16

62.76

 

30.12

48.72

70.32

 

10.08

16.68

26.64

 

15.12

25.44

38.64

 

19.08

32.04

49.26

 

24.48

41.16

62.76

 

30.12

48.72

70.32

14.4

 

 

 

24.6

 

 

24.6

30.24

46.44

 

46.44

17.76

28.8

45.84

 

26.04

40.08

nr

 

na

na

na

24.12

19.92

31.2

nr

 

na

na

na

18.72

8.04

13.2

19.8

 

11.64

19.44

30.48

 

19.32

31.8

48.84

 

30.6

50.64

78.84

 

8.04

13.2

19.8

15.48

11.64

19.44

30.48

22.92

19.32

31.8

48.84

38.04

10.08

16.68

26.64

 

15.12

25.44

38.64

 

19.08

32.04

49.32

 

24.48

41.16

62.76

 

30.12

48.72

70.32

 

17.76

28.8

45.84

 

26.04

40.08

nr

 

8.52

13.56

19.8

 

11.64

19.2

29.88

 

15.12

24.84

38.4

 

Page 5
Image 5
QSC Audio 120 VAC manual Amplifier Current Draw-100 VAC, 30.6

120 VAC specifications

QSC Audio is a renowned leader in the audio industry, known for its commitment to innovation and high-quality sound solutions. One of the pivotal offerings in their extensive portfolio is the QSC 120 VAC series, a lineup designed to meet the demanding needs of professional audio applications.

The QSC 120 VAC is engineered for both performance and reliability, making it ideal for installations in venues ranging from auditoriums to performance spaces. One of its standout features is its exceptional power handling capability, allowing users to drive loudspeakers with clarity and dynamic range. This series provides robust output while maintaining fidelity, ensuring that every note is reproduced accurately.

Another defining characteristic of the QSC 120 VAC is its advanced Class D amplifier technology. This technology not only contributes to a lightweight and compact design but also enhances energy efficiency. Class D amplifiers are known for generating less heat compared to traditional Class A/B designs, which means that the QSC 120 VAC can operate longer without the need for extensive cooling systems. This is particularly beneficial in large venues where space and ventilation might be limited.

The QSC 120 VAC also features comprehensive protection circuitry, safeguarding the amplifier and connected speakers from potential damage due to overheating, overloading, or short circuits. This assurance of longevity makes it a reliable choice for both permanent and touring setups.

Moreover, the series integrates seamless connectivity options, allowing for easy integration with various audio systems. Users can benefit from multiple input options, including both analog and digital formats, providing flexibility in connection with mixers and other audio equipment.

The design of the QSC 120 VAC is also notable for its user-friendly interface. Front-mounted controls and indicators simplify operation and monitoring, making it accessible even for those who may not be deeply familiar with audio engineering.

In sum, the QSC 120 VAC stands out as a powerhouse in the world of audio amplification, characterized by its innovative design, exceptional performance, and robust features. Whether used in a concert hall, corporate event, or theater setting, the QSC 120 VAC continues to set a standard for excellence in professional sound reinforcement.