Originally Posted by Bill-P
God... I'm done. Explaining this to you has been a really hard task because you keep going off on your own assumptions and you keep disregarding what I wrote.
That is exactly what you do. You did not even respond to my last post in any meaningful way. I explained, more than once, why your claims are wrong, but you either ignored or misrepresented it (not sure if deliberately or because of the lack of understanding), or responded by obfuscation and veering off the original subject, or just resorted to personal attacks. Very typical of audiophiles when their beliefs are questioned. To reiterate, here is a summary of your original statements (both are popular myths, by the way):
- higher maximum power output improves sound quality, even if never actually used, especially in relation to high impedance headphones (the standard "it will be loud enough, but not driven properly" FUD). Let's say I monitor the voltage on a headphone driver with an oscilloscope or audio analyzer, and, at the desired volume, it never exceeds a peak level of +/- 1.5 V; having two amplifiers, A and B, where A can output a maximum of +/- 3 V, and B can output a maximum of +/- 6 V, B will - according to you - sound inherently better, particularly by having an improved bass response
- when driving a transducer that is not a pure resistive load, the amplifier needs to provide constant power from a constant input voltage at any frequency for a "correct" response, rather than a constant voltage; that is, if the load impedance is 100 Ω at 1 kHz, and 1000 Ω at 100 Hz, then the voltage output at 100 Hz needs to be increased by 10 dB relative to the level at 1 kHz, otherwise the bass response will be lacking (note that this is not related to the absolute level, and thus the maximum power output, but you obfuscate the two issues)
Can you back these claims up, or would you prefer to change them ?
Originally Posted by Bill-P
If you don't believe me, well, then please enjoy your Fiio E11 with 250 Ohm headphones, sir. Maybe one day, when you have scaled up in amp, you'll see what I'm talking about.
I do not use my 250 Ω headphones with the FiiO E11 (as I do not have an E11, in case you wonder why), but even if I did, I would need more convincing arguments to "scale up" than condescending and snobbish remarks like what is quoted above. Would you be willing to prove the inadequacy of the E11 to drive such headphones in a level matched blind test against a more powerful amplifier that meets all objective criteria of being transparent ?
By the way, I am aware, as indicated right from the beginning, that it might not be enough for everyone and with every type of music, but when it is not, it is simply an issue of not being able to reach a sufficient level of loudness without audible distortion, rather than an inherent lack of bass, sound stage, or whatever other nonsense. Maybe the general sound quality of the E11 could be better, but that is not something that specifically affects high impedance headphones.
I see you still avoid discussing the topic in Sound Science. Does that indicate a lack of confidence in your argumentation ?
Edited by stv014 - 10/2/12 at 10:22am