Colossus and NI must also be on the list for refurbishment, although most of Inferno's speakers and amplifiers work (except the speakers in the top section of the queue)
I already knew that Tidal Wave would have more than one amplifier. I thought as the queue line speakers are probably on a 100v line system, one or two amplifers would serve the entire area.
Also, does this mean that the speakers in the transformers around Amity Cove are all from 2000? I'm surprised that they usually work very well, especially for their age.