Power consumption vs output

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cgraydotcom

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I tried searching but could not find an answer.

I would like to run a WiiM Amp on an Anker Solix C300 portable power station. It’s got a 300w plug and has 288 watt hours of capacity.

It seems the WiiM pulls around 10 watts under normal use. Is that all it pulls, but outputs 60 watts per channel? Would I be able to operate it for 28 hours, or 2.5 hours?

My goal is to build a kick-butt golf cart sound system. A WiiM, an Anker, and a nice pair of outdoor speakers wont cost much more than a 12v Bluetooth speaker that sounds like poo. Plus the added benefit of not draining the battery on the golf cart when parked.

Thoughts?
 
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If it is 2x60w, and since class D might have around 90% efficiency, then at rated output, the consumption will be around 150W…
But I believe we listen most around 5-20w per channel so the usual consumption will be around 12-50w.
 
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pjorgenunes said:
If it is 2x60w, and since class D might have around 90% efficiency, then at rated output, the consumption will be around 150W…
But I believe we listen most around 5-20w per channel so the usual consumption will be around 12-50w.
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The power stage is not the only component that needs to be fed, though.

However, it looks @cgraydotcom did already come up.with a working solution. :D
 
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