[forcooler]

Hi,
 
I've noticed that the long notes(synth,string or maybe a voice held notes) sound a little shaky/trembling on higher volume levels.This occurs more in songs which have a strong beat to them.The smoother/softer the song the lesser the shaki-ness.
 
Also,the low end tends to distort at low volume levels(again in songs with strong beats).
 
I was wondering whats are the reasons behind these things?
 
Thanks in advance

 

[BotByte]

Your EQ is set too high and the driver can't push correctly.
 
Or your source is pumping out too much power
 
Or you amp is not pushing enough

 

[TMRaven]

Might you have an eq enabled?  You might be distorting on the digital level. 

 

[forcooler]

Quote:

Might you have an eq enabled?  You might be distorting on the digital level. 

 
Thanks,I'll try to play with the eq settings a bit more. The Amp(fiio e5) i think must be more than sufficient for these 32ohm hd 448's so i don't think it's less power.
 
Anyway,the 'digital level",this just makes me wonder,What are those in-line DAC's we hear about supposed to do,would they help in such cases? A link or source to an explanation would be appreciated.

 

[Uncle Erik]

I think you are forcing your amp into clipping. Even if you are running off a soundcard (which it sounds like), it still has a little amp onboard. You're asking too much of the amp - they do these sorts of things when you're asking for more power than it can give.