Psu for Tpa 3255 100w 8ohm speakers

[Kaarlos]

Hello everyone!I just got aiyima a07 Amp ,also recommended by a seller (aiyima)psu which is 48v 7,5a. However my speakers are 100w rms 8ohm stereo.Do i need that kind of power from psu for 8ohm?Psu is ok, pleeeenty of power but standby 12w bugging me a bit.I had tpa 3116d2 previously with 24v brick psu and it was using only 2w in standby mode.Can somebody tell me how much power i actually need for my 100w 8R stereo speakers?Thanks a lot.
BTW i dont know if that matters but i have also aiyima T5 preamp connected, it strentghten the signal little bit as well i think..

 

[Kaarlos]

Thanks guys!Super helpfull forum,good job!

 

[Mello4]

Hello everyone!I just got aiyima a07 Amp ,also recommended by a seller (aiyima)psu which is 48v 7,5a. However my speakers are 100w rms 8ohm stereo.Do i need that kind of power from psu for 8ohm?Psu is ok, pleeeenty of power but standby 12w bugging me a bit.I had tpa 3116d2 previously with 24v brick psu and it was using only 2w in standby mode.Can somebody tell me how much power i actually need for my 100w 8R stereo speakers?Thanks a lot.
BTW i dont know if that matters but i have also aiyima T5 preamp connected, it strentghten the signal little bit as well i think..

I would use 42V-48V with 5A-6A for 8 ohm speakers & 100W min.

 

[Kaarlos]

Thankyou!Appreciate your answer.Any idea why multitester shows 1,4a on the output terminal of a 7.3a psu regardless of volume ?

 

[Mello4]

Thankyou!Appreciate your answer.Any idea why multitester shows 1,4a on the output terminal of a 7.3a psu regardless of volume ?

You would need to be a lot more specific about conditions of what & how you are measuring.