All the gain stages and power stage have been re-designed and optimized as well to provide for the shortest signal path and the most direct signal flow. The result is a significant advance in sonic performance, wider and deeper holographic soundstage. It also has more fine details and greatly improved powerful bass punch, dynamics and outstanding life-like performance–free of compression effects or dynamic limitations. One of the absolutely best sounding KT150 power amplifier in the world.

All the gain stages and power stage have been re-designed and optimized as well to provide for the shortest signal path and the most direct signal flow. The result is a significant advance in sonic performance, wider and deeper holographic soundstage. It also has more fine details and greatly improved powerful bass punch, dynamics and outstanding life-like performance–free of compression effects or dynamic limitations. One of the absolutely best sounding KT150 power amplifier in the world.

Mono-Power amplifier

The Conquistador is inimitable with a unique character. Developing and designing a new project you must think unlimited and scrutinize everything. This way the Conquistador was created and it is a highlight in design and engineering art.

Audio Research is pleased to announce the Reference 160S stereo power amplifier. A vacuum-tube design, it follows in the footsteps of the internationally-acclaimed 160M monaural power amplifier, introduced in 2018, which has won multiple amplifier-of the-year honors from publications such as Stereophile, Hi-Fi+, and others.

The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package.

We are pleased to introduce the VT80SE, the Audio Research amplifier with the widest appeal to the greatest number of music lovers worldwide. By combining world-class performance with flexibility and features like auto-bias, the VT80SE has been an amp that is easy to take home and just forget as you enjoy your music collection again for the first time.

After two years in development, the new Reference 160M (REF160M) Monoblock Power Amplifier is built like no other, looks like no other, and sounds like no other amplifier that you have ever heard, but it is unmistakably Audio Research. It features a refined audio topology with fewer and better components in the signal-path than in previous designs, switchable Ultralinear/Triode operation, proprietary auto-bias, output tube monitoring and protection, an advanced power meter, and much more.

The Reference 750 SEL monoblock amplifier continues the story begun 25 years ago with the introduction of the Reference 600; that is, to create the ultimate, vacuum-tube amplifier with enough power to drive any speaker, and to provide a musical experience unlike any before it.

The Reference 320M amplifier was originally imagined to be a larger, more powerful version of the Reference 160M amplifier, but it turned out to be a more sophisticated amalgam of designs incorporated in other Reference amplifiers. What was shown in 2022 was a concept, not a product. The 330M is a very different beast, producing 330 watts per channel.

Created to mark our 50th anniversary, the A-300 redefines the ideal for Class A power amplifiers. 20-parallel push-pull power MOS-FETs in the output stage improves performance by 25% over conventional models with outputs of 125 W into 8 ohms, 250 W into 4 ohms, 500 W into 2 ohms, and 1,000 W into 1 ohm that set the stage for enviable constant-voltage drive. The fully discrete balanced input amplifier achieves a level of quietness that will make you forget you are using audio equipment for reproduction. The A-300’s unmatched expressiveness lets you enjoy the most exquisite pieces from the world’s greatest composers.

MODEL 125 STEREO

The All-New Two-Channel Paradigm X-500 amplifier is the perfect complement to our Home, Pro and Elite in-wall and in-ceiling speakers, the Defiance Custom Subwoofers and our Stylus, Rock and Garden Oasis outdoor solutions.

The most affordable ULTIMA-technology stereo power amplifier in the portfolio, BerTTi brings the next-generation ULTIMA topology to the ground-breaking Table Top (TT) range.

Pure Class A Pentode/Triode – We are proud to introduce a new generation of fully balanced designed KT150/KT170 stereo power amplifier, the Triton Evo – PA.  Refined, but not analytical – organic & natural sonic signature. Wall to wall three dimensional soundstage!

The P-4600 power amplifier extracts the complete breadth of recordings, vividly recreating the rush of live performances, and lets you enjoy the very essence of musical performances.

Mono Power Amplifier for Signature Line

The 159 Mono Power Amplifier’s design is inspired by our renowned portfolio. However, seven years of developing its performance and measurement also resulted in its functional innovation to be reflected in the appearance.

The Burmester stereo power amplifier 956 MK 2 is a proud descendent of Burmester’s internationally highly acclaimed family of power amps 911 and 909. The reference amp 909 has marked the pinnacle of audio amplification since 1990. Many of the insights gained in designing the 909 have influenced the concept of the 956 MK 2. Like the legendary preamplifier 808 the 956 MK 2 is of modular design with the advantage that older models can easily be upgraded to the latest version.

The A-80 is a Class A power amplifier developed as a stereo amplifier version of our 50th anniversary A-300 model. Optimizing the 10-parallel push-pull power MOS-FETs in the output stage produces an output power of 65 W into 8 ohms, 130 W into 4 ohms, 260 W into 2 ohms, and 520 W into 1 ohm.

Jeff Rowland Model 555 Stereo Power Amplifier