PTom
100+ Head-Fier
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Does Audeze recommend any particular amp for the LCD 2? Or is there a particular amp that they normally use to demo the LCD 2?
Been using an O2 amp for a while. Thinking about going for a Mjolnir next. Only thing is the O2 can be harsh/hard/forward in the mid range with my LCD-2r2s on many tracks and I'm thinking the Mjolnir might be the same. Can anybody give a comparison of the two?
Does Audeze recommend any particular amp for the LCD 2?
Jan Meier does good stuff. ... somewhat under-rated on headfi IMHO.
Do we know what amp they voiced it with?
Generally speaking, audio gear that looks like a utilitarian black box without fancy faceplates and knobs and without a big price tag tends to be under-rated. The fact is, ampifying audio signals is not rocket science, it's a well known field with proven designs, high quality internal parts aren't too expensive, so there's no reason for a reference quality sonically transparent headphone amp to cost a fortune when produced in sufficient volume.
Is there any consensus on the best tubes to use in a Lyr amp for the LCD2's. I am about to get some LCD2 phones and while I am going to listen to the stock tubes to begin with, I'd like to know where to go if I don't like what I hear that much.
... please explain the design objectives used to make the amp or cable sound better. Never had anyone say "our amp has a faster/better/XYZ ____, which improves performance".
Oh I've heard people say that, like "we use OPA627 op amps" or "toroidal transformer" or "discrete components, no op amps" - all are objectively defensible claims about improving performance.
Yet you've touched the key difference: "sound better" versus "improves performance". One is subjective, the other objective and measurable. To confuse things further, some - but not all - subjective preferences disappear in level matched double blind testing.
All that said, music is about artistic expression and entertainment. If someone likes a particular thing, what right does anyone have to say it's a waste of money? Even if it doesn't sound like natural acoustic music or a live mic feed, maybe euphonic distortion is the sound he likes. Even if he can't tell it apart in a double blind test, he may simply enjoy the satisfaction of owning and using it.
Sure - toroidal transfers, discrete components, Class A / zero feedback designs: all of these do have an impact on the sound and affect sonic quality. But these can all be made for $1000 or less. I was thinking more in terms of the significantly more expensive amps - what exactly are they using that makes them more expensive?
Originally Posted by vkalia /img/forum/go_quote.gif
... there are people talking about noticeable improvements in bass and treble performance with a change in cables - that means we are talking about atleast a few dB of difference. Who really thinks that is possible? An audible difference would be ridiculously easy to measure - so where are those measurements?
Originally Posted by vkalia /img/forum/go_quote.gif
There are 2 extremes - one where everything has to be DBT-verified, and one where every claim is acceptable and where we all live in a yellow submarine. I guess I am arguing for a world that is a compromise of the 2 - where subjective claims are subject to a certain basic degree of objective rigor.
In the context of the LCD2s, I find it hard to believe that 4W makes a difference over 2W of power - esp when most of the time, the amp is likely putting out <100mW of power. There would have to be a serious performance issue with the 2W amp at/near peak output for there to be an audible difference.
Originally Posted by vkalia
I agree with the last paragraph - if someone is happy with their perception, more power to them - who cares if it is a placebo or not? I am a single-ended triode kinda guy, so it isnt as if i am married to the idea of DBT-uber-alles.
^ agree with all the above. As a side note, the validity of DBT for testing audiophile claims depends on the assumption the ear/brain system (EBS) is exactly like reliable and properly calibrated test equipment. Test equipment performance isn't affected by how a cable looks or the topology of an amp. Nor presumably does EBS performance vary under blind testing conditions. However, if under sighted conditions EBS performance varies then DBT is not as appropriate a methodology as it seems.
SET amps can be reliably differentiated from solid state in DBT. The tubilicious sound is no placebo effect; it's real and audible.
EDIT: I'll add that DBT doesn't answer "which is better" or "which is more realistic". It doesn't express judgment or preference.
It only answers, "Can you tell these apart based purely on listening with no other clues."