naive2music
Thanks. I have Prsonus audiobox 22vsl

Actually, if you're using the vsl version, set the mix knob all the way to computer...

Open the vsl app and there you can adjust eack of the two inputs separately as well as the PC playback volume.

To here reverb while recording, use one of the fx sends in vsl to send to a reverb while leaving the recording path to include the direct from preamp and not include fx... This will give you essentially zero latency reverb while recording but note that you need to use reverb in sonar itself after recording as the vsl reverb was only for monitoring...

Keni

naive2music
During editing if i want to lower the volume of a small portion of the audio trak by 3db, how do I do it. Similarly if I want to increase the volume how do i do it. Thanks.

I would opt to use a volume envelope to adjust playback volume for portions of a mix...

Do you know about volume envelops?

Keni

keni, I am pretty naive.  I used to use cakewalk pro-8.  In the edit menu there was a drop down which allowed the selected audio to e raised or lowered by 3db as needed. Thanks for your help.

Its funny I had Profession 8 a long time ago. 
 
In Sonar use automation for what you describe you want to do. Its precise and easy to use.  

It's still there under Process|Audio in the menu...

If not use the above and select gain which has presets for such...

Welcome to the future! ;-)

Keni

Keni, Thanks. I will check. Regards