Quote Originally Posted by pelly3s
Thank you
I'm not an electronics engineer so please feel free to correct me if I am wrong but....

It is my understanding that a quality power supply in any peice of equipment would be capable of providing a clean DC supply whatever the state (within reason) of the mains. That power supply would also be capable of storing sufficient power to deal with the worst case momentary current drain of the equipment.

It is also my understanding that fuses would start blowing long before the current draw by the equipment got anywhere near the current handling capacity of even the most basic mains cable.

I am however a mechanical engineer and as such can smell bull sh1t a mile off.

If a dealer was in the process of trying to sell me a piece of quality equipment then told me that I also needed a different mains lead or a filter, I would immediately leave the shop.