Live streaming on Youtube with MB Studio is very easy. Go to your Youtube profile and activate a live video and choose the broadcast with a streaming software
Now take note of the streaming configuration:
Now open the encoder configuration in MB STUDIO and set it to RTMP Video codec Video h264 2048K or higher and in the server box write:
rtmp://a.rtmp.youtube.com/live2/ and on its right paste the streaming key
the result will be something like this
rtmp://a.rtmp.youtube.com/live2/streamkey
Now you can activate the encoder and you should be live on youtube
Please note that YouTube will disconnect you if you broadcast copyrighted audio or video.