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Oasis 8 makes dramatic improvements in image focus and dynamic expression
The Avenger chassis can be upgraded with many of the same components found on the Avenger Plus and Avenger Reference
the low-pass digital filters and the DSD filter
Rather than using conventional negative feedback — which can introduce time-domain errors — SoundEngine 2 detects and corrects distortion before it reaches the output stage
Surround Yourself with Perfection The M17 V2 carries on the enviable task of representing NAD’s finest surround sound performance
Unison Research REFERENCE TUBE Mono Valve Amplifier digital audio Oasis 8 makes dramatic improvementsUnison Research REFERENCE TUBE Mono Valve Amplifier at Vinyl Sound Buffalo, NY USA The REFERENCE TUBE is a mono valve power amplifier from Unison Research (Treviso, Italy), available at Vinyl Sound in Buffalo, NY, USA. Reviewed by Stereophile in 2025, it is the flagship monoblock from Unison Research and represents the culmination of the company's decades long expertise in 845 triode amplifier design. Operating in pure Class A with a double parallel