New Audio Research Reference 320M Amplifier

The Reference 320M will be the next addition to the new range of award-winning Reference amplifiers from Audio Research (ARC). 2018 saw the introduction of the Reference 160M, with its bold aesthetic and new benchmarks in performance and reliability. Since then, the Reference 160S and Reference 80S stereo amplifiers have followed, but a more powerful amplifier with similar performance and flexibility has been frequently requested by the audio community. 

The Reference 320M is designed to provide significantly more power to drive the most demanding loudspeakers on the market while revealing the music in a way no other amplifier can do, providing the resolution, dynamics, and subtle nuances which unite to recreate the original musical performance.

The skilled team of engineers and listeners at Audio Research created a new masterwork that is not just bigger, it's performance sets a new elevated standard. From the quietest whisper to the roaring fortissimo of a symphony orchestra, the Reference 320M moves from micro to macro to effortlessly deliver an unforgettable musical experience.

The Reference 320M follows the same form factor as the other Reference amplifiers in the series, including the striking GhostMeter® that provides a window to the 11 vacuum tubes standing out from the top plate. The amplifier is entirely hand-built in our Minnesota facility by a team of skilled craftspeople with one focus - to advance the state-of-the-art in music reproduction.

Expected to be available later this fall.

Preliminary Specifications

  • 320 Watts
  • Auto-Bias
  • 4, 8, 16 Ohm speaker connections
  • XLR and Single-ended Inputs
  • Tube Complement:
  • (6) KT150 Power Output
  • (2) KT150 Driver
  • (1) 6H30 Input
  • (1) 6550 and (1) 6H30 Power Supply
  • RS-232 Control
  • 12V Trigger
  • 20A (C19) Power Connector
  • Tube Cover (removable)