Power consumption: 4B-SST vs. 4B-SST2

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dubkarma

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Power consumption: 4B-SST vs. 4B-SST2
« on: 14 Apr 2024, 11:12 pm »
Not being in a position, for now, to afford a 4B3, I am considering buying a 2011 4B-SST2 from a local fellow.

When comparing the back panel of the 4B-SST2 to the 4B-SST I've enjoyed for some years, I noticed one striking difference.

The power consumption (if that's the correct term) of the 4B-SST is specified as 2100 VA while that of the 4B-SST2, 550 Watts.

Can any one translate one of those into the other for me? Or explain what they mean?

For now I'm wondering how a class A/B power amp rated at 2 x 500 W into 4 ohms could only draw 550 Watts.

But maybe I just don't understand what I'm reading. . .

Any help appreciated!