Crown I-Tech HD Series Operation Manual page 24

7 AC Power Draw and Thermal Dissipation
I-Tech 9000HD 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.
120VAC
Watts Out
Line Current Amp Line
Load
120VAC Current
Idle (sleep mode) 1.0
Idle (awake) 2.1
1/8th Power Pink Noise 8 Ohms/Ch.
6.6
16 Ohms Bridge
Typical of program material
4 Ohms/Ch.
just at clip.
11.6
8 Ohms Bridge
2 Ohms/Ch.
11.5
4 Ohms Bridge
1/3rd Power Pink Noise 8 Ohms/Ch.
13.6
16 Ohms Bridge
Typical of program material
4 Ohms/Ch.
with severe clipping.
27.6
8 Ohms Bridge
2 Ohms/Ch.
25.0
4 Ohms Bridge
page 46
I-Tech HD Series Power Amplifiers
I-T9000HD
208VAC 230VAC
Watts Out Watts Out
Per 1A Per 1A Per 1A
Line Current Amp Line Line Current Amp Line Watts
208VAC Current 230VAC Current Dissipated
1.0 0.95 60
1.7 1.6 225
57.6 4.2 91.2 3.8 99.8 392
65.7 7.0 108.8 6.3 120.4 593
55.9 6.8 96.5 6.2 105.3 695
74.4 8.1 125.3 7.4 137.2 579
73.9 16.0 127.2 14.3 141.0 1149
67.0 14.9 113.5 13.6 124.3 1223
I-Tech HD Series Power Amplifiers
7 AC Power Draw and Thermal Dissipation
I-Tech 12000HD 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.
Thermal Dissipation
Btu/hr kcal/hr
205 177 Idle (sleep mode)
Idle (awake)
767 660
1/8th Power Pink Noise
1338 337
Typical of program material
just at clip.
2024 510
2373 598
1/3rd Power Pink Noise
1977 498
Typical of program material
with severe clipping.
3921 988
4173 1052
Operation Manual Operation Manual
I-T12000HD
120VAC 208VAC
Watts Out Watts Out
Per 1A Per 1A
Line Current Amp Line Line Current Amp Line Line Current
Load 120VAC Current 208VAC Current
0.9 1.1
2.0 1.8
8 Ohms/Ch.
8.3 63.6 5.1 103.3
16 Ohms Bridge
4 Ohms/Ch.
14.6 68.8 8.7 115.2
8 Ohms Bridge
2 Ohms/Ch.
14.2 62.9 8.2 106.1
4 Ohms Bridge
8 Ohms/Ch.
18.1 77.4 11.0 128.3
16 Ohms Bridge
4 Ohms/Ch.
35.1 76.3 20.8 128.6
8 Ohms Bridge
2 Ohms/Ch.
33.9 69.2 19.9 118.0
4 Ohms Bridge
230VAC
Thermal Dissipation
Watts Out
Per 1A
Amp Line Watts
230VAC Current Dissapited Btu/hr kcal/hr
1.0 62 212 183
1.6 213 726 625
4.7 111.8 441 1504 379
8.0 124.5 701 2394 603
7.7 113.6 764 2607 657
9.9 142.0 715 2439 615
18.7 144.2 1370 4677 1179
17.9 131.1 1589 5425 1368
page 47