I notice you said he doesn't have the money or time, but if you ask me I think it does take a little bit of both if he wants to do it fairly easy, correct, and make this painless. So if he back pedals on that thought in a liberal sense, here is what I would do. He could get a few decent mics, place them around the room to capture some good sound from the speakers and room ambiance, and find a way to get that all audio from what the mics pick up in real time into a laptop computer w/ some kind of external sound card (in addition to buying a used laptop which is probably the best way in this sense). He can then preset the levels and hit a record button on some free software like Audicity. Oh yeah, hitting the save function would be the only other thing he would need to do. He can then take all that audio later and put it all into some kind of 4 TB portable external hard drive. That would be my solution.