Preamplifiers
VK-3i	Fi - Wayne Garcia Stereophile - Howard Blumenthal SoundStage! - Todd Warnke    (Reviewer's Choice 99) AudioReview - Forum
VK-3iX	Stereophile - Robert Deutsch    November 2005, p. 125
VK-5/5i	Positive Feedback - Rick Gardner Stereophile - Jonathan Scull Stereophile - Robert Deutsch Stereophile - Robert Deutsch Audio Revolution - Jerry Del Colliano    (Preamplifier of the Year) The Audiophile Voice - Bill Wells AudioReview - Forum Secrets of Home Theater - J.E. Johnson, Jr.
VK-20	AudioReview - Forum
VK-30	AudioReview - Forum
VK-30SE	AudioReview - Forum
VK-40	Stereophile - Robert Deutsch    July 2001 Audio Revolution - Jerry Del Colliano
VK-50SE	Positive Feedback - Sue Kraft    Vol. 9, No. 2 Stereophile - Jonathan Scull    December 1999 AudioReview - Forum
VK-51SE	Positive Feedback Online - Writers' Choice Awards for 2005 Positive Feedback - Rick Gardner
CD Players
VK-D5	Enjoy the Music - Dick Olsher Fi - Wayne Garcia Stereophile - Jonathan Scull Audiofile - Sujesh Pavithran AudioReview - Forum
Phono Stages
VK-P5	hi-fi+ - Jimmy Hughes    Issue 34, p. 87 Positive Feedback - Rick Gardner
VK-P10	The Audiophile Voice - Lewis Lanese Stereophile - Jonathan Scull SoundStage! - Bill Cowen Positive Feedback - Rick Gardner
Amplifiers
VK-300x	The Absolute Sound - Wayne Garcia
VK-55	Stereophile - Robert Deutsch    November 2005, p. 125
VK-60	Stereophile - Jonathan Scull Stereophile - Robert Deutsch The Audiophile Voice - Arnis Balgalvis AudioReview - Forum
VK-75/SE	Stereophile - Robert Deutsch    July 2001 AudioReview - Forum
VK-150/SE	Stereophile - Jonathan Scull AudioReview - Forum
VK-200	Fi - Wayne Garcia Stereophile - Howard Blumenthal AudioReview - Forum
VK-500	Positive Feedback - Rick Gardner The Audiophile Voice - Bill Wells Secrets of Home Theater & High Fidelity - John E. Johnson, Jr. AudioReview - Forum
VK-600	Positive Feedback Online - Writers' Choice Awards for 2005 Positive Feedback - Rick Gardner The Absolute Sound - Robert Harley    February 2006, p. 82
VK-1000	AudioReview - Forum
VK-6200	Stereophile Guide to Home Theater - Fred Manteghian Widescreen Review - Shane Buettner Secrets of Home Theater & High Fidelity - John Kotches The Perfect Vision #38/p89 - Wayne Garcia AudioReview - Forum