[10][11] In a review for AllMusic, Richie Unterberger wrote: "These tentative explorations into relatively uncharted jazz-rock territory retain an engaging, freewheeling verve and warm humor, although the lyrics are sometimes self-consciously hip and spacy...

"[2] Daniel Spicer of PopMatters called the album "an absolute mother lode" for "anyone with even a passing interest in the cross-fertilisation of counter-cultural rock 'n' roll with '60s avant-garde jazz."

He stated: "this is the sound of a bunch of very young men in their early twenties, refusing to be constrained by expectation, embarking on musical careers at a time when the whole Western world was in upheaval... To put it simply, this little record is a joy.

's Kevin Hainey described the album as a "vastly overlooked... classic of psychedelic jazz rock innovation," and remarked: "Out of Sight and Sound is brimming over with jazzy grooves, frenetic psychedelic blowing, and tuneful arrangements filled with vocal harmonies and bluesy riffs... there are just too many crazy and inspired moments here to list, but these strangely accessible yet radical songs will leave your head and hips revolving for many spins to come.

"[14] The editors of Billboard included the album in their "Special Merit Picks," writing: "The group fuses rock sound with the jazz backgrounds of the members...