NuForce Reference 18Price: $7600 per pair

Website: www.nuforce.com

Tim said: To be sure, the Reference 18 has some worthy competitors at its not-insubstantial price level of $7600/pair, but they had better bring along their “A” game in any shoot-out with this outstanding class-D amp. Biases be damned.

Reviewers' Choice

Read the SoundStage! Hi-Fi review.

The gist: Reference amps at a real-world price.