Price: $15,000

Website: www.audioresearch.com

Aron said: In my time with it, I quickly learned that Audio Research’s Reference 6 preamplifier is one of those rare products capable of producing a quality of sound greater than might be suggested by the sum of its parts. In my time with it, I quickly learned that Audio Research’s Reference 6 preamplifier is one of those rare products capable of producing a quality of sound greater than might be suggested by the sum of its parts.

Reviewers' Choice

Read the SoundStage! Ultra review.

The gist: Aron bought the review sample.