The original recordings were flawed in parts due to various mishaps, and were remastered using modern technology to compensate; however, the mastering engineers took care to avoid the loudness war practices common to modern recordings.
The original recordings were flawed in parts due to various recording mishaps, but were remixed using modern technology to attempt to compensate, particularly for the lack of bass guitar. The mastering engineers also took care to avoid the loudness war practices common to modern recordings.