Here are some of the best quality bootlegs from each year listed chronologically. There aren’t a ton of soundboard bootlegs out there, but some years have more than others.
1978 has lots of great quality and a handful of soundboard recordings.
1979 there’s 2 or 3 soundboard recordings that have surfaced in recent years.
1980 there’s really only 1 soundboard — or it’s the audio track from the pro-shot video for 5/1/1980 Largo (although the video has never surfaced).
1981 sadly there are ZERO soundboards — although probably one of the very best audience bootlegs from any year, 8/25/1981 Greensboro.
1982 there’s 1 soundboard (11/18/1982 Dallas), but also a handful of audio from pro-shot in-venue video like 10/12/1982 Largo and a few from the South American tour in 1983.
1984 there are ZERO soundboards in circulation, although a handful of really great quality audience bootlegs.