I bought a voltage transformer to use with denon avr bought from usa , now i am going to buy xbox from us. Can i connect both products to transformer using multi pin adapter , it is stated as 750 watts in my transformer.
Its not a thumb rule, but it is always safer to use 2.5 times of the total watts of the unit, This prevents the transformers from excessive heating during summers.
I am using 1.5 KVA stepdown for my Onkyo SR608 (bought in 2010), its working flawlessly since then, and no complains over these years.