Currently the audio line out of my Audiophile 2496 goes directly to my power amp and monitors. I want to add a headphone amp so I have the option of listening to either the headphones or monitors. Is a simple A/B box all I need? (I recall seeing these at radio shack). Or is there a more appropriate solution. FYI, I only record one track at a time, and it's usually just me recording my songs directly to computer. Thanks for any ideas.