Thunder Up is the fifth and final studio album by English post-punk band the Sound, released in 1987 on Belgian record label Play It Again Sam.

[1] Adam Brent Houghtaling, author of This Will End in Tears, wrote that with Thunder Up, "the aggression evident on [the Sound's] earlier releases had largely calmed into a more polished guitar pop".

[7] Critical appraisal from the mainstream press the work has largely been absent, although it was championed by Melody Maker upon release: "The Sound, by refining their despair, simply amplify their magnificence and magnify the intensity of expression".

Drummer Michael Dudley named it as one of his favourite Sound albums (along with Propaganda),[9] while Graham Bailey called it the band's "crowning glory".

[3] In a 1988 interview, frontman Adrian Borland said, "Ultimately I find Thunder Up the very best album, because it sounds like the band 'live' in the studio and, in a way, it actually was".