Radio 2 star Gambaccini described the Saturday night music series as "karaoke" and claimed that the US version on NBC had only benefited the show's star coaches, rather than the musical acts.
"The Voice is a karaoke competition, full stop," Gambaccini told the Radio Times. "Although the American series was fantastic to rejuvenate the careers of two of the judges [Christina Aguilera and Maroon 5's Adam Levine], it didn't give us a viable artist."
Fellow DJ Mark Goodier also questioned the motives of Universal Music, who will sign the winning act and look after three of the show's coaches - will.i.am, Sir Tom Jones and Jessie J.
"Universal have to be doing this because they want market share," said Goodier. Commenting on the show's potential to become a huge hit in the UK, he added: "It really depends on whether they find a star or not. I have no idea whether they have."
The Voice UK launches on Saturday, March 24 at 7pm on BBC One.
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Watch a clip from The Voice UK below: