PENG I'm wondering Anthem rates there amps all the way down to 2ohms I'm really always been curious how they can pull that off with such light weight and manageable size
As you stated there power supply seems smaller so how are they able to do that? Do you any understanding from an engineering perspective on how they can pull that off?
Just curious is all
I believe that's a smart marketing move on their part. For real world music and movies contents, they know any high current demand moments are going to be short like a few seconds, so if the load impedance happens to dip down to 2 ohms at those moments there won't be any issue.
Unlike Monolith, Anthem won't tell you the VA rating of their transformers and storage caps, but you can see the nameplates of the caps and that's how I know Monolith uses bigger caps. It is hard to see the nameplates of the their transformers, but you can see and estimate their external diameter and height by measuring and scaling it based on the external dimensions (that they do provide) of the casing.
They described their power supply size "massive" though, I thought that was funny. I actually emailed them (twice) in the past and asked about their VA rating. Got a non answer the first time, and never got a response the second time. That tells me those "massive" toroids are likely small relatively speaking.
I'll say that again, their design is smart and efficient. Heavier is not better if it means extra transformer VA and storage capacity that will never be used.
Why do you think their AVRs now only provide 140/150 W class AB amps for the main 5 channels and only about 60W for the other channels? Same answer, just being smart, based on real world needs.