Help with HK525 confusing specs (1 Viewer)

[altan]

The owners manual for the HK525 states

"Power Consumption 120W idle, 1040W maximum
(7 channels driven)"

Yet on the back of the unit (by the AC cord) it says

"550 Watts"

How can this be? Any input is appreciated!

... Altan

 

[altan]

One more think.. It's interesting that the 550 Watts is "blacked out" on Harmon Kardon's web page (when you select the view of the back). However, if you view a 525 in a store, it clearly says 550 Watts.

Strange...

... Altan

 

[JohnnyG]

I would guess that this figure represents average power consumption. Labelling it as 1040W would be no more accurate than labelling it as 120W would be.

Who knows why that info in the image is blacked out, but the units used for those photos are most likely pre-production prototypes, so it's possible that this figure was not know at that time.

 

[altan]

I certainly do not know, but I assumed the wattage label on the back was a maximum...

I very well could me wrong.

... Altan

 

[Jeff.bart]

As an owner of the receiver too, I honestly pay no heed to those numbers. This thing is a best at 44 pounds and has plenty of power to feed all but the most truculent speakers.

 

[Guy Usher]

Has to do with their UL rating. Also a good number when figuring how big your circuit needs to be 550w=4.5amps
1040=8.67 amps.