Can you tell me? - if i want to use a Aiyima A07 at 36V, how many Ampere should the power supply have to use the most potential at 36V? Or does it even make more sense to use a TPA3251, if i want to run it at 36V only? I didn't really find the answer for that yet.
36V for Aiyima a07 is fine.
You will need about 8 A for that. Remember that you have two channels to drive. Often the measurements only show one channel.
You also need the ”crest” factor to consider. With real music, if the two loudspeakers are 8 ohms, you might get away with slightly less than 8 A. With two 4 ohms speakers - absolutely 8 A as a minimum.
If you with tpa3251 are meaning the Aiyima a04 , you have to remember that the power-caps in that amplifier are only rated 35 V.
So 28V 6A would be safer.
Remember that Aiyima a07 surely can play music with 36V and only 3A at low volume, but the amplifier will current-clip long before any voltage-clipping when you play louder or using 4 ohms loudspeakers.
Last edited: