Hi!
I am so glad we go the first issue solved. 
Now for the hiss, in the UR44 mixer, each channel can be assign to MON.FX or INS.FX. 
You only want MON.FX if you want to add live effects to your source signal like reverb but not be able to print those effects to your DAW.
If you have selected an option under that other than Ch.Strip (channel strip), then you may be hearing the Yamaga guitar effects which can add lots of hiss to the channel. 
So try to on have MON.FX and then below it, Ch.Strip selected and see if that helps. 
 
Merry Christmas!

Rimshot
Hi!
I am so glad we go the first issue solved. 
Now for the hiss, in the UR44 mixer, each channel can be assign to MON.FX or INS.FX. 
You only want MON.FX if you want to add live effects to your source signal like reverb but not be able to print those effects to your DAW.
If you have selected an option under that other than Ch.Strip (channel strip), then you may be hearing the Yamaga guitar effects which can add lots of hiss to the channel. 
So try to on have MON.FX and then below it, Ch.Strip selected and see if that helps. 
 
Merry Christmas!

I don't want to use guitar effects.
How can I turn off them?
Could you share a screencast for disabling hiss's?

Thanks.

OK, here it is:
 
http://screencast.com/t/OromZmXuuLdT
 
 
http://screencast.com/t/OromZmXuuLdT

Rimshot
OK, here it is:
 
http://screencast.com/t/OromZmXuuLdT
 
 
http://screencast.com/t/OromZmXuuLdT

You are the superman! Thanks all of your help, I solved them :)

Glad to hear it!  Have fun now!

Rimshot
Glad to hear it!  Have fun now!

Dear Rimshot, sorry for disturbing again.

1. If I set all channel faders to 0 I can't hear any hiss's; but unfortunately my channel 5/6 not working in this way.

2. If ıt's possible, could you set following settings and save .ur44 file from file/save menu then share with me?
*You can download my last settings file end of the topic If you want to look it;



1. I'm using channel 1 and 2 for instruments (as line input)
2. I'm useing channel 3/4 for condensore microphones
3. I'm using channel 5/6 with mixer with panning,
4. I don't want to use fx.
5. I'm using cakewalk sonar as DAW

Thanks again from now.

**Please right click and save the file;
https://dl.dropboxusercontent.com/u/14204909/steinberg_last.UR44

Link did not work. Can you do a screen capture using Jing (it's free) and then post the link to it here?

Rimshot
Link did not work. Can you do a screen capture using Jing (it's free) and then post the link to it here?

Could you try this link please?

https://dl.dropboxusercontent.com/u/14204909/steinberg_last.zip

Ok, got that and recalled it on my side. No issues there. 
Here are some screen shots of UR44 setup in Sonar:
1. http://screencast.com/t/dwR5mrT8
2. http://screencast.com/t/xA47fnCE
3. http://screencast.com/t/L5tvxTCb
4. http://screencast.com/t/scvFCBS9x8m
 
Try to match what I have shown you above. 
 
 
 
 
 
http://screencast.com/t/dwR5mrT8

Rimshot
Ok, got that and recalled it on my side. No issues there. 
Here are some screen shots of UR44 setup in Sonar:
1. http://screencast.com/t/dwR5mrT8
2. http://screencast.com/t/xA47fnCE
3. http://screencast.com/t/L5tvxTCb
4. http://screencast.com/t/scvFCBS9x8m
 
Try to match what I have shown you above. 
 
 
 
 
 
http://screencast.com/t/dwR5mrT8

I know that, I bothered you a lot of time. Unfortunately my friend can't set these settings to Sonar :(

Could you connect and set them if possible?

Thanks.