Hello,
I see it like the other members here.
Let me say that demo units are always a bad choice.
Because they are literally forced by the test listeners.
The switches are turned with little feeling, the potentiometer is also turned and other such things.
It should be much more this lesson where you should take with you.
Of course you can sell the amplifier and get a new one, that's your choice.
On the other hand, if it is repaired, it is almost like new.
Apart from that, when you buy online you always have a residual risk of the parcels being raped by the postal companies.
So even there you never have 100% unless you pick it up yourself in the shop.
Have courage and hold your ground.
The fact that the retailer has already collected the parcel is a good sign.
Most of the work is done now and you have to wait even if the situation is crappy.
There are of course alternatives to bridge this like small headphone amplifiers, an Ifi Hip Dac or something like that can also bridge the time.
@Andykong
Question for you, I thought there was a general distributor in Germany.
I would say that they also repair there or am I wrong?
If not, it would be a pity for the consumer that he actually has to wait a very long time for his repaired unit.
It seems to me to be more the case that the units to be repaired are shipped from there to China than repaired.
A repair usually does not take long, depending on what it is, it is a maximum of one day's work for trained personnel.
Can you tell me if I'm wrong?