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AC Power Draw and Thermal Dissipation

This datasheet provides detailed information about the amount of power 
and current drawn from the AC mains by the I-T4000 amplifi er, and the 
amount of heat produced under various conditions. The measurements 
presented here are intended to provide a realistic and reliable depiction 
of the amplifi er. 

I-Tech 4000 AC Current Draw and Thermal Dissipation:

Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz.
Typical line impedance used.
Data based on both channels driven.

Line Current 

120VAC

Watts Out 

Per 1A 

Amp Line 

Current

Line Current 

208VAC

Watts Out 

Per 1A 

Amp Line 

Current

Line Current 

230VAC

Watts Out 

Per 1A 

Amp Line 

Current

Btu/hr

kcal/hr

Idle (sleep mode)

0.8

0.95

0.9

53

182

157

Idle (awake)

1.6

1.4

1.3

172

587

505

1/8th Power Pink Noise

8 Ohms/Ch.

Typical of program material 

16 Ohms Bridge

just at clip.

4 Ohms/Ch.
8 Ohms Bridge
2 Ohms/Ch.
4 Ohms Bridge

1/3rd Power Pink Noise

8 Ohms/Ch.

Typical of program material

16 Ohms Bridge

with severe clipping.

4 Ohms/Ch.
8 Ohms Bridge
2 Ohms/Ch.
4 Ohms Bridge

Load

Thermal Dissipation

305

1413

356

5.3

94.6

59.6

64.9

116.3

2426

612

410

8.0

476

17.8

711

17.7

115.3

128.7

824

142.1

709

4.8

6.6

10.5

10.7

1491

2814

437

3.4

4.7

414

3.1

4.4

I-T4000

10.9

1625

376

1040

262

7.8

4.4

6.0

9.5

9.4

58.1

77.1

77.0

70.3

106.9

96.1

126.2

129.1

106.0

139.9

Watts 

Dissipated

120VAC

208VAC

230VAC

102.6

Crown International
P.O. Box 1000
Elkhart, IN 46515-1000
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com

I-T4000

3/04                                                              137433-1           

I - T E C H   S E R I E S  

Specifi cations subject to change without prior notice. Latest 
information available at www.crownaudio.com.

Crown and Crown Audio are registered trademarks of 
Crown International. Other trademarks are the property 
of their respective owners. 
Printed in U.S.A.                        © 2004 Crown Audio, Inc.

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