Originally Posted by ianmedium
I just went back to his post on FB,
He also wrote this..
Tu-05 is pure class A single tube amplifier. Therefore it is of about 40 mW output.
If you consider to drive the low efficiency Earphones or Headphone, TUR is better.
An aim is 95dB／mW.
So the 05 is much lower power which I assume is better for sensitive IEM's/headphones?
I've got to watch what I say here 'cos I'm sure there'll be the smart folks telling me I'm spouting utter rubbish. So for those readers, please go easy on me as I'm happy to learn :D.
I'm gonna briefly talk about speakers assuming it applies to headphones too and using my aforementioned speakers as an example. So my N804's apparently need something like 180W/ch to drive properly but this is with AB Class amps. If I use A Class amps, then a lower wattage would also drive it just fine. A Class amps are deemed more inefficient and therefore run hotter. However it appears that audiophiles consider Class A to be somewhat more "pure" (hope I've chosen the right word here) and usually A Class amps are more expensive than AB Class amps.
So if that same could be applied for headphones but scaled down considerably (instead of xxx-W, we're now talking about xxx-mW) then that 40mW A Class is still quite decent.
I'm sure at this point someone with better knowledge is gonna pounce at my jugular.