Hello,
I'm a blind musician, bought an UR44 yesterday. Now I have some questions and issues about unit;
1. Is it possible to disable/mute monitoring via monitors/speakers that insorted to back outputs? Hetphone is enough for me for monitoring.
2. When I decrease microphone volume to 0, I can hear my microphone. an other example, when I using line on the front panel  with disabling fantom power, I can hear sound comes from line cable as well. 3. I insorting balanced line-in cables to the back panel and try to record music via my daw. If I can't use microphone, everything works well. While I talk/record something with microphone, the sound that comes from line automatically decreasing until mute the microphone.
P.S: The DSP windows application not accessible with screen readers, so I can't check/change anything on there.
System/hardware details: Windows7-64bit, Steinberg UR44, CakeWalk Sonar 8.5 and X3, MXL Condenser microphones.

I can't help with everything but I can help on a couple things. The headphone jacks are completely independent from the output control. Just turn down the output and there will only be sound in the headphones.
 
You may need someone to help you with the Mixer and DSP configuration. I was hearing reverb on everything and found that the problem came from the DSP being active. You have to set it up from the screen that you can't access. I only had to do this once.
 
If there is bleed on the inputs you can shut them off in Sonar. I hope this is some help for you.

Hello,

First of all, thanks for your reply.

1. When I want to listen my record via studio monitör, unfortunatly I'm hearing my microphone as well, because of monitoring function. I'm trying to decrease the volume of the mic; but I'm hearing alittle.
2. I'm disabling inputs from Sonar; but I'm hearing voice from the microphone via monitör or hetphone.

Thanks again,
regards.

There is a fader to the left of the master volume fader in the UR44 Control Panel. 
If it is set high (DAW), you will be listening to Sonar.
If it is low, you will be listening through the UR44.
You should try monitoring just through your DAW.

Hi Friends,

Although I set microphone input level to 0 (turn-off), I can hear a little sound from mic.

Do you have any suggestion for this issue?

Thanks in advance.