| Superunknown (CD, Album) | A&M Records, A&M Records | 31454 0198 2, 31454 0198-2 | US | 1994 | |
| Superunknown (2×LP, Album, Limited Edition, Clear) | A&M Records | 540 215-1 | Europe | 1994 | |
| Superunknown (CD, Album, Club Edition) | A&M Records, A&M Records | CD 500198, 31454-0198-2 | Canada | 1994 | |
| Superunknown (Cassette, Album) | A&M Records | 540 215-4 | Europe | 1994 | |
| Superunknown (Cassette, Album, ooooooo, 35, Chrome, Dolby System) | A&M Records, A&M Records | 31454 0198 4, 31454 0198-4 | US | 1994 | |
20th anniversary edition (as stated on book)
180-gram double vinyl, newly remastered from original analog tapes.
Issued in a gatefold sleeve with 12 page book with new photos and art
No hype sticker or download card as found on the
200 gram editionEngineered and mixed at Bad Animals Studio, Seattle, WA.
Track D2 mixed at Electric Lady, NY.
Track D5 recorded at Bear Creek Studios, Wooninville, WA, mixed at A&M Studios, Hollywood, CA. Originally released as International Album and U.S. Vinyl Album bonus track.
℗ © 2014 A&M Records
Art Direction [Reissue], Design [Reissue] – - Josh Graham
Bass, Vocals – - Ben Shepherd
Design [Original Front Cover] – - Kelk
Drums, Percussion – - Matt Cameron
Engineer – - Jason Corsaro
Engineer [Assisted By], Mixed By [Assisted By] – - Adam Kasper (tracks: A1 to D1, D3, D4)Lead Guitar – - Kim Thayil
Management – - Laffitte Management Group , - The Artists Organization
Management [Booking Agency] – - William Morris Endeavor Entertainment, LLC *
Management [Business] – - Flood Bumstead MacCready & McCarthy , - Provident Financial Management , - VWC Management *
Management [Legal Counsel] – - King, Holmes, Paterno & Berliner
Mastered By [Reissue] – - Stephen Marcussen
Mastered By [Vinyl Reissue] – - RM *
Mixed By – - Alex Reed (tracks: D5), - Brendan O'Brien , - Brendan O'Brien (tracks: A1 to D1, D3, D4), - Michael Beinhorn , - Michael Beinhorn (tracks: D2)Photography By [Band Photos, Reissue] – - Kevin Westenberg
Producer – - Michael Beinhorn , - Soundgarden
Producer [Reissue] – - Jeff Fura
Product Manager [Reissue] – - Liuba Shapiro
Production Manager [Reissue] – - Monique McGuffin Newman *
Recorded By [Assisted By] – - Joe Hadlock (tracks: D5)Supervised By [Reissue] – - Kim Thayil
Vocals, Guitar – - Chris Cornell
Phonographic Copyright AampM Records
Copyright AampM Records
Recorded At Bear Creek Studios
Engineered At Bad Animals
Mixed At Bad Animals
Mixed At Electric Lady Studios
Mixed At AampM Studios
Mastered At Marcussen Mastering
Distributed By Universal Music Distribution
Mastered At Capitol Mastering
Pressed By Quality Record Pressings