The Company Will Release Performance Updates In The 6SE Preamp and Reference 750SE Mono Power Amplifier

December 17, 2019

Audio Research is pleased to announce important updates to two products in its Reference series, the Reference 6 line-stage preamplifier, and the Reference 750SE mono power amplifier. Both products will begin to ship in December.


A special edition performance update has been created for the REF6 line-stage preamplifier. The REF6SE ($17,000 USD) replaces the REF6, which has won more than a dozen international awards since its introduction in 2015. The knowledge gained in the creation of ARC’s extensive collection has contributed to the evolutionary upgrades incorporated in the REF6SE.

Several component and wiring upgrades create in immediate sonic impact, providing higher resolution, greater transparency, better focus, and an effortless quality that draws the listener into the rich musical soundscape. Regardless of the system into which it is mated, the REF6SE will provide new insight into the recording.

The SE update will be available to current REF6 owners in January 2020 and can be installed through Audio Research or authorized service centers for $3,000 USD. Note that an update kit will not be available to convert the REF750SE to a REF750SEL because the changes are too substantial to make the upgrade feasible.


We are proud to announce a special limited edition of the REF750SE mono amplifier. Only 10 pairs available, the REF750SEL ($75,000US/pr.) replaces the REF750SE, with first shipments available after December 16th.

Named The Absolute Sound’s 2018 Tube Amplifier of the Year, it is hard to imagine that significant sonic improvements could be made to this statement product, but the development of the Reference 160M and 160S amplifiers provided a number of component and wiring upgrades that have been incorporated in the new 750SEL. This new product establishes a new benchmark of quality for Audio Research amplifiers, with the sonic improvements instantly heard, boasting new levels of transparency, purity, naturalness, and improved micro- and macro-dynamic contrasts–from pppp to ffff—that allow the music to come alive.