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I get 380mw @ 250 ohms with my Schiit Asgard 2 

Here's where I get confused with all this stuff. If 0.38 mW produces 90 dB (which is reasonably loud), even assuming a non-linear increase in power requirements (set me straight here if I'm wrong), why wouldn't even the 30 mW output from the amp whose specs were listed earlier produce ear-shattering output? How about an amp that reached the maximum input of 100 mW for the DT880? Clearly I'm missing something here.
Here's where I get confused with all this stuff. If 0.38 mW produces 90 dB (which is reasonably loud), even assuming a non-linear increase in power requirements (set me straight here if I'm wrong), why wouldn't even the 30 mW output from the amp whose specs were listed earlier produce ear-shattering output? How about an amp that reached the maximum input of 100 mW for the DT880? Clearly I'm missing something here.
sorry, truly, but one more amp related question... if I may
do you guys think an external amp will be necessary to use dt880-250ohm with below DAP:
[td=colspan:4]X3[/td]
Output Power 1 > 540 mW@16Ω Output Impedance <0.3Ω Output Power2 > 270 mW@32Ω Crosstalk >75 dB@1KHz Output Power3 > 30 mW@300Ω THD+N < 0.005%@1KHz Frequency Response 10Hz~20KHz(+/-0.2) MAX output voltage > 8 Vp-p SNR > 105 dB (AUX IN) MAX output current > 250 mA
where can a girl learn what all those numbers mean?![]()
With a Little Dot MK II to IV SE there are some fine tubes to be had for less than $10 a pair. The higher in class you go the more expensive it will be, on a nice $3500+ Woo, $200 to $300 a tube is not unreasonable.![]()
Hi Chris J, I could use some clarification here. I can't find the article, but I remember reading an article written by an electrical engineer (I think) and his point was that the ohms have very little to do with the volume level a given amp can drive a headphone to. He provided a technical explanation that demonstrated that it is the sensitivity that actually influences the real volume level you can achieve. I wish I had bookmarked the article (which I normally do), but because I didn't I can't confirm this.
What are those tubes that you were talking about that could be had less then 10 dollars a pair and how is their sound signature,so I can save the link for future reference.