Soldato
Oh right, I was listening through my STX and HD650s, preparing to go Skyrimming 
Sennheiser HD650 - The classic beauty in a grey dress Appreciation thread!
- Thread starter Ryanr1987
- Start date
Soldato
No one can hear it, but they will hear the effects of aliasing on a frequency this high anyway. Nobody's equipment is rated for this kind of super treble.
Case in point: turning the volume up high enough reveals the aliasing.
Soldato
you couldnt answer before analysing the track, Tephnos?
I know the answer, you know the answer because you just cheated.
The point of that audio file isnt to trick people, its a 30 and 33khz tone generated and saved in 96/24, designed to test your bit perfect 96/24 playback. if you can hear anything, then its not bit perfect and that's the sort of thing people hear when they claim bat hearing. We all know that but you had to analyse the track before answering, and i asked you twice...afraid of getting it wrong?
http://people.xiph.org/~xiphmont/demo/neil-young.html#toc_1ch
love the reluctance to answer first
I know the answer, you know the answer because you just cheated.
The point of that audio file isnt to trick people, its a 30 and 33khz tone generated and saved in 96/24, designed to test your bit perfect 96/24 playback. if you can hear anything, then its not bit perfect and that's the sort of thing people hear when they claim bat hearing. We all know that but you had to analyse the track before answering, and i asked you twice...afraid of getting it wrong?
http://people.xiph.org/~xiphmont/demo/neil-young.html#toc_1ch
love the reluctance to answer first
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Soldato
No james, it is because I've done all of this ages ago and saw right through you.
I indeed heard nothing, because my equipment is up to spec. It's only when you turn the volume way up that aliasing becomes noticeable.
I indeed heard nothing, because my equipment is up to spec. It's only when you turn the volume way up that aliasing becomes noticeable.
Soldato
lol, sure. You've just taken that way to seriously.
Anyway...
Well, that's about the best excuse you could have though
Anyway...
Well, that's about the best excuse you could have though
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Soldato
I like smashing your toy sets
Soldato
https://mynoise.net/NoiseMachines/ultrasonicNoiseGenerator.php
Try this one instead. It's fairly nice as it uses actual sounds. Your brain hates pure tones and will drown them out pretty quickly. If you can hear the last one, describe how it sounds.
Try this one instead. It's fairly nice as it uses actual sounds. Your brain hates pure tones and will drown them out pretty quickly. If you can hear the last one, describe how it sounds.
Soldato
I like smashing your toy sets
no, you like being an arse.
Can't hear it, or slider 9.
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Soldato
Soldato
Thinking of getting some HD650's but I'll need to power them and I don't really want an external amp if I can help it.
I've currently got a SB-Z soundcard and guessing this won't release their full potential?? What sound card will? SB-ZXR or Xonar STX?
I've currently got a SB-Z soundcard and guessing this won't release their full potential?? What sound card will? SB-ZXR or Xonar STX?
Xonar STX would be a good shout, if you can find one for a good price. STX II and ZxR are too expensive for what they are in my opinion. Nearly £200 for a sound card I think is crazy, when any software/drivers problems or interference can render a lovely piece of hardware, completely useless.
Roughly around £200 will buy a Schiit stack, that will never be crippled by software issues such as useless drivers or OS sound card problems, like people have had with Asus Strix cards, and being external is away from EMI.
Roughly around £200 will buy a Schiit stack, that will never be crippled by software issues such as useless drivers or OS sound card problems, like people have had with Asus Strix cards, and being external is away from EMI.
Soldato
That would be very nice of you 
Am I right in thinking though if I used the Vali 2 with my SB-Z I'll loose the virtual surround?
Am I right in thinking though if I used the Vali 2 with my SB-Z I'll loose the virtual surround?
Soldato
I have no idea will have to look when I get home.
Soldato
Oh ok not really looked at that one, thanks for the heads up, bit cheaper as well
Anything else which will make the HD650's shine? Ideally I want to stick with soundblaster as I like their software.
Anything else which will make the HD650's shine? Ideally I want to stick with soundblaster as I like their software.
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Sufficient power isn't really a problem with 300-500 ohm headphones like the HD 650. Whatever you've got currently (SB-Z) will almost certainly be able to provide the voltage swing. You only need 0.2 Vrms to get 90 dB. It's the really low impedance, insensitive headphones that are usually harder to drive as they want lots of current.
Furthermore the high impedance means damping isn't usually a problem. Even if your SB-Z has a very high output impedance (like 10 ohms) the ratio is still good.
There are other ways it will be deficient but they're not critical tbh (slew rate especially).
In summary, just try with your SB-Z and get something if it's inadequate.
To answer your question about making them shine - obviously a high quality amp and source - but again not needed in the first instance.
Furthermore the high impedance means damping isn't usually a problem. Even if your SB-Z has a very high output impedance (like 10 ohms) the ratio is still good.
There are other ways it will be deficient but they're not critical tbh (slew rate especially).
In summary, just try with your SB-Z and get something if it's inadequate.
To answer your question about making them shine - obviously a high quality amp and source - but again not needed in the first instance.
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Atleast in terms of op amps upto a point I find slew rates somewhat important - on some of the bog standard ones with low slew rates the 600/650 can sound dull and muddy even when loud - I think part of the problem is people not distinguishing between parts rated for "typical" and "minimum" rates.
Rail voltage seems to have a small effect as well (though the voltage swing seems more important) below a certain level the bass and treble seems to collapse.
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