Amplifier power useage - AVS Forum
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Old 10-19-2013, 07:32 AM - Thread Starter
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Checking the specs for the onkyo ht-5500 I notice that it draws 530 watts. Is the wattage when at full power ? We have the tv on for the better part of the day, seems like 530watts would make a significant increase in the electric bill. Or am I missing something ?
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Old 10-19-2013, 07:54 AM
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... I notice that it draws 530 watts. Is the wattage when at full power ? ... Or am I missing something ?
In the owner's manual, right below this:
Quote:
Power Consumption
(North American and Brazilian) 5 A
(Asian) 530 W
There's this:
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No-sound Power Consumption
(North American and Brazilian) 65W
(Asian)
65 W (230 V)
70 W (240 V)

Stand-by Power Consumption
(North American and Brazilian) 0.2 W
(Asian) 0.3 W
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Old 10-19-2013, 09:05 AM
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Quote:
Originally Posted by bobbee25 View Post

Checking the specs for the onkyo ht-5500 I notice that it draws 530 watts. Is the wattage when at full power ?

Not at all.

Class AB power amps have approximately 70% efficiency at full power. Exactly what its full power all-channels driven power output is would be not obvious from the spec sheet, but its at least 65 wpc.


Quote:
We have the tv on for the better part of the day, seems like 530watts would make a significant increase in the electric bill. Or am I missing something ?

Actual power drain in typical use is probably very close to the numbers for idling or zero output - or about 65 watts.
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