Is there a way to set up apogee duet through Logic Pro 8 so it will contol Mac's internal speakers? Or is my only option headphones if I am in situation where I can't setup external speakers? Thank you!

Hi You need to create an Aggregate Device. This will essentially join two audio interfaces (in this case your built in Mac's interface and the Duet) and allow you to select in puts and output of each device as if it were one. [url]http://support.apple.com/kb/HT1215[/url] :) Rounik