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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cgraydotcom said:
It seems the WiiM pulls around 10 watts under normal use. Is that all it pulls, but outputs 60 watts per channel?
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No. It cannot put out more power than it draws from the mains or the power station. No device can.

The maximum input current is rated at 4 A (see the underside) but in most operating conditions it will be a lot less than that.

The operation time will largely depend on the listening level, so it's hard to estimate. The more efficient the speakers are, the less power the amp needs to drive them.
 
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Ok, so 4amps @ 120v would be 480w, right? The Anker has a 600w power surge outlet as well. But even at a mild 288 watts under normal draw, that’s still just an hour of use. Sound right?

Thanks!
 
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These 4A are surely just temporary spikes. Average current intake will be lower, by far.

I don't want to promise you anything that doesn't happen because I underate your needs for SPL, but I think that an average power consumption of 25 W (equalling a current of <0.21 A) will probably be all you need.
 
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Thank you. It sure seems like the setup should work. I don’t need more than a few hours at a time anyway. I think I have a watt meter that I can plug my WiiM amp into so I can test it. I have that device, just not the portable power supply yet.
 
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