Way too noisy, both electrically and acoustically - had a look inside and it seems the main culprit is the rectifier diode and snubbers, which get stinking hot regardless of output power so need constant cooling, and there's also 100s of millivolts of switching noise spikes (see scope captures attached).
Ehhh, I'm not really bothered about how noise-free the output is. That's why I'm looking at cheap switchers. I'm mainly after 10A capability and remotely-controllable with SCPI. But if it's quite egregiously noisy on the output, perhaps I'll reconsider.
Not really.
from Farnell, £130.51 ( ex VAT ) does not include VAT.
from Aliexpress Total €107.99 Inclusive of VAT
I don't know where I can change the currency at Farnell, but if I calculated correctly, it would end up costing me over 200 Euros from Farnell.
Where are you finding that price on AliExpress? Are you sure it's inclusive of VAT, and/or for the SPE3103 model?
Price including VAT from Farnell is £156 for me. Price with VAT for Owon model from AliExpress
here (Owon's own store) is £132.