Does anyone have the same issue?
Yes the Trafo is not completely silent , if you mean the typical trafo buzzing which goes up down exactly same as energy meter at display.
If ionly that and not really loud it’s normal for that stations trafo type , how it works , that power
There are different trafo types and ways to build to make it way more silent but that’s nothing expectable from a china clone .
Clones with DC (switching power supply ) could be very quiet but have their own problems with cartridges made for AC.
Really expensive trafo systems are way quieter too but still hearable. My pace is not really one of the silent ones and is about ⅓ as loud.
<40W trafo systems could be nearly unhearable (but what I mean as nearly unhearable could be too loud for someone else).
The trafo and the 2CH was the reason for me to buy that one , but I have known before it’s not silent , but my fume exhaust ventilation is not really silent too - a old GPU fan with a filter mounted on backside which turns on at full speed if I take any handle out of it’s cradle (and if soldering often you should have one too).
But could be a fault too if really loud, itself like unsymmetrical windings , broken or electronic fault …. Or even from your side ; bad energy with a lot of noise , unsymmetrical AC , bad ground , voltage, frequency …. (more unlikely in a private household that that from other devices , but bad energy supplier or bad installations ….). Or it stays at a non stable easy vibrating surface.
Or simply mechanically , maybe from shipping , like loose screws , direct contact to plastic housing (instead of that thin rubber). Station has potential to make it quieter too through better damping , decoupling , weight , better housing/case . As it is it’s a thin lightweight plastic case with thin rubber as decoupling without damping and thin rubber as feets too.
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