Quick power consumption measurements of Topping E30 and E30 II Lite

[salmo]

I had a possibility to play some time with both Topping E30 and E30 II Lite. I like to play with power efficient stuff or optimize power consumption of PCs or my servers, so I made some simple measurements of power consumption:

DAC mode with A-O setting (so with active auto ON/OFF mode) when in usage:
E30 - 2,3 W
E 30 II Lite - 2,6 W

DAC mode with A-O setting in standby:
E30 - 1,4 W
E30 II Lite - 1,6 W

Now the most important one - DAC mode with A-C setting (so with inactive auto ON/OFF mode) in standby:
E30 - 1,2 W
E30 II Lite - 0,0 W - below the measuring range, it's literally minimal! Even if I unplug power brick, orange dot continues to glow for about 3 seconds.

Looks like second generation on E30 made some improvements here. Sadly with L30 II we still have that huge AC-AC brick - yeah, it's easy and do exactly what it should, but it sucks 2-3 W doing virtually nothing.

 

[AnalogSteph]

Sadly with L30 II we still have that huge AC-AC brick - yeah, it's easy and do exactly what it should, but it sucks 2-3 W doing virtually nothing.

Same for the AC supply that comes with an Atom Amp+ (almost 3 W doing nothing). Not the last word in efficiency even for a transformer job, but I guess there's not an infinite choice in factories still making these and their stuff is a bit rustic. It's not like this issue is trivial to fix either while keeping the benefits of a linear transformer.