(There's no video for AppleDesign Powered Speakers (Manual) yet. Please contribute to MR and add a video now!)
AppleDesign Powered Speakers are the first powered speaker system designed by a computer company specifically for use with a personal computer.
This is the user's guide/manual scanned in PDF format.
appledesign_powered_speakers-2.pdf (4.14 MiB / 4.34 MB)
Apple Design Powered Speakers / user's guide (PDF)
Emulating this? It should run fine under: Basilisk II