Instead of churning out so many new products all the time perhaps Topping could spend a little more time on things like these, especially for products intended to be used as combos. This is in part of why I'm sceptical of Topping products.
This is not aimed specifically at you, but in general at everyone who has bought or wants to buy an audio device with a Brick.
The most important point is the decision to buy such a device with an external transformer or power pack.
Of course, it's cheaper for the buyer because it's also cheaper for the manufacturer.
Smaller housing, less assembly and assembly effort, less development effort, much less effort and costs for approvals and certificates, cheaper power supplies, etc.
Of course, the buyer also assumes the responsibility of operating the device as intended by the manufacturer and only plugging in the original or correct power supply.
The voltage is on the back of the socket on each of the devices. Think 5 seconds and plug in the right plug and there will be no problems.
If you put the wrong fuel in your car, or take the wrong amount of pills, you can't blame anyone else, so why here?
Of course, a manufacturer can catch these errors, but then the development becomes more expensive and the actual basic idea (low costs for all sides) is undermined. Then the user should use a device with a built-in power supply unit, where such a problem cannot occur.
The actual error arose well over 40 years ago when the industry failed to create a standard for barrel connectors with different voltages.
This type of connector is used in tens of thousands of devices. Notebooks, computers and various accessories, desktop boxes of all kinds, hard drives, cordless devices (vacuum cleaners, cordless screwdrivers, gardening tools, kitchen appliances, tools, etc.), chargers, audio of all kinds, lighting, etc.
With AC voltages up to 25 volts and DC voltages up to at least 48 volts. Hardly any of these devices is really protected against user errors. And I've seen many smoked because the wrong transformer or the wrong power supply was plugged in.
And be careful if you don't use the original power supply. In addition to the correct voltage for AC or DC, you must also pay attention to the correct polarity. There are devices and power supplies where the positive voltage is applied to the barrel connector on the outside and the negative voltage to the inner conductor.
@all manufacturers
Provide your customers with simple assistance in replacing defective components in the event of damage. That would be the least thanks and respect for the purchase.