Capture 10 internet streams at once using Audio Hijack ... multiple App instances?

I want to capture 10 internet audio streams all at the same time and record each into its own synchronized audio file using Audio Hijack. I'm recording 10 different live language interpretations for an upcoming event. AH will allow me to start the recording simultaneously and keep everything in synch.

I know how to launch multiple instances (copies) of the same browser. They show up as separate running apps for Audio Hijack source blocks, but they all are providing a sum of all running app instances.

Alternatively, I can find 4 or 5 Mac browsers (Safari, Opera, Chrome, Firefox, etc.) and record 5 at a time ... but then I need a second computer to capture the next 5.

Any ideas on how to have each Safari instance provide only its own audio feed to AH?

Thanks