Hoffman Estates - Audience 8.7 - Residing mainly in the mid and upper mid range this recording does not showcase any real definition in the highs, and the metal loudness defined as a solid guitar/bass attack for the low end. What you end up with here with these two recordings is something of historical value but nothing you would use to impress your buddies with. Are they essential for the collection? Yes, both of these shows are very significant in value and because they are not horrible recordings I can recommend them.
Chicago - Audience 8.8 - This recording has a softer mid-range making it a little more comfortable, but still does not have a clarity and distinction to it, but it is also not muddy, it's just a capture that was made with equipment that had only the capability to document a live event, it wasn't made to do a professional live recording so keep that in mind - pretty decent but not great. I will say this, and I sincerely believe this - I think this recording is exactly what your ears would have been hearing at this show. That is why I think these recordings are important, even if they lack soundboard clarity and are not A+ audience tapes. There's plenty to enjoy here with both of these shows.
Black Sabbath Last Night With Ronnie Disc 1 Poplar Creek Music Theater Hoffman Estates, Illinois 1982-08-31 101. E5150 102. Neon Knights 103. N.I.B. 104. Children Of The Sea 105. Voodoo 106. Black Sabbath 107. War Pigs 108. Drums Solo Disc 2 201. Iron Man 202. The Mob Rules 203. Heaven And Hell 204. Guitar Solo 205. The Sign Of The Southern Cross 206. Heaven And Hell (Reprise) 207. Paranoid 208. Children Of The Grave Disc 3 International Amphitheater Chicago, Illinois 1981-12-21 301. E5150 302. Neon Knights 303. N.I.B. 304. Children Of The Sea 305. Country Girl 306. Black Sabbath 307. War Pigs 308. Slipping Away 309. Drums Solo 310. Iron Man 311. The Mob Rules 312. Heaven And Hell 313. Paranoid