[Shauntell47]

yeah, without eq, i don't hear any hiss at all with volume going up to 20 and no amp with Audio-Technica ATH-CK7s or Goldring GX200s....

 

[Jzzz]

Yes, iAudio 7 has a clear hiss goin' on! So does D2. But, since it has a dropped mid range it feels like it's less comparing to i7. Anyway, I don't find it bothering while actual listening.

 

[Joshatdot]

I only hear the hiss when everything is right after boot, and nothing is playing. When I press play, hiss goes away and music plays w/o hiss.

 

[Nosgis]

I have the iAudio 7 combined with UE Sfi 5 Pro IEM's, and I hear close to no hiss. I only hear low hiss on bad (low bit rate encoded) mp3's. So I'm very satisfied.
Usually I listen to volume level 15-17 (of 40), with no attuenator attached. EQ very close to flat. Everything off, except mach3bass at 2.

Shigzeo: How sensitive are the westone's um2 compared to Sfi 5 Pro by the way? I see you mention that volumes at level 5-8 is enough.

 

[UseName]

Poorly matched impedances can cause this problem (as well as others). An easy fix is to add an impedance adapter or attenuator to the output.

 

[Drag0n]

But its a quality hiss...lol :O

 

[Joshatdot]

btw - my iA7 firmware is 1.14

 

[oldson]

no hiss from my 818 with ath-a900 cans!

 

[shigzeo]

i am not sure how the sf5pro fare, but the um2 are 119db/mw making them hiss even when plugged into vacuum. with attenuator they might not hiss and naturally be driven well by d2 but without, they were not the best choice.

 

[robojack]

I own a Cowon D2, and I get no hiss with the Super.fi 5 Pros nor with the Atrio M5's. As well, my recently acquired Ultrasone HFI-780 cans also do not hiss with this player.

 

[ptn]

I've just got a new pair of Denon AH-C700s and there's noticeable hiss when there's nothing playing, as well as when stuff is playing. It's not a problem for Dub and rock, but it's a bit annoying when listening to something like Arvo Pärt, with a lot of quiet parts and silence. I have the volume below 20 all the time (sensitive ears), so it's a bit annoying. Do you think it could be anything to do with the lack of burn-in on the Denons? (I'm new to this game, so apologies if that's a dumb question...)

 

[shigzeo]

my denon c700 hissed with the d2 as well, but only a very little. the d2 is really quite quiet in comparison to other portables. the only other one i have heard that is as good is the nano 3g.

my atrio also could detect hiss with the d2 but... just barely. i am quite sensitive to hiss.

 

[ptn]

oops. Meant to say i'm listening on an i7...

 

[BigDave]

robojack, I also have the super fi 5 pros, how do you find them on the d2? I am seriously considering getting this player and was hoping for good synergy. Or can anyone else recommend a good dap to go with the 5 pros? Good to know that the hiss is minimal....