The original tapes have been lost a good long while now sadly. Still my favorite Yes album since this album is where it started for me. About the best sounding version on disc to my ears is the remaster by Steve Hoffman. It was released in CD/SACD on Audio Fidelity in 2013. As others have noted, however, the album could really use a remix. Maybe one day the tapes will be discovered unless they have been destroyed. Seems unlikely but a fan can hope!
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