Class A Amplifiers

The EAM Lab STUDIO 162 Power Amplifier is designed for faithful and dynamic reproduction even with little space available. The STUDIO 162 uses...

In Hi-Fi, the Musical Fidelity A1 has become one of the most classic designs – inside and out. First released back in 1988, it quickly made waves...

The Simply Italy was inspired by the iconic Simply Two integrated amplifier from Unison Research, and produced to celebrate the 150th anniversary...

Preludio is an integrated tube amplifier that maintains the distinctive technical elements, sound characteristics and stunning looks that Unison Re...

The Sugden pure class A design provides affordable high-end performance from a beautifully engineered single box integrated amplifier.  Compa...

The Special Edition A21SE integrated amplifier builds on the strengths of the classic A21. Offering pure class A single ended voltage rail ...

Unison Research S6 integrated valve amplifier was hailed by Hi-Fi World as “easily the best tube amplifier at the price”. The S6 is a class A desi...

The Audes ATA-288R is a stereo valve amplifier combining a refined Class A sound and robust output power by utilising push-pull Class A ultra-li...

Part of Unison Research's classic line of tube amplifiers that include the Preludio and the Performance, the Sinfonia integrated amplifier retains ...

The Masterclass ANV-50 is a new integrated amplifier released to celebrate Sugden Audio’s fiftieth anniversary. It is a unique design with m...

The Sinfonia Anniversary is a special edition version of the Sinfonia integrated amplifier. Benefiting from the same superior design and build char...

Class-A. A circuit concept that has bewitching midrange in both push-pull and single-ended amplifiers due to the low distortion. But unfortunately...

The E.A.R. Yoshino 834 is a Push-pull stereo integrated amplifier with 50 Watts per channel into 4, 8, or 16 Ohms. Using 6L6, EL34, or KT66 outp...

The Masterclass IA-4 is Sugden's flagship and most popular integrated amplifier.  Weighing a substantial 20 kilos the IA-4 has a purposeful...

The founding principle at OCTAVE has always been to apply modern innovations to classic tube technology. OCTAVE technology entails a further deve...

The E.A.R. Yoshino 8L6 has been designed to meet a wide variety of needs, from the most demanding of audiophiles to the professional seeking hig...

The E.A.R. Yoshino 869 is an enhanced triode mode integrated amplifier. Building on the success of the EAR 859 with increase power output and be...

The all-new OCTAVE V 80 SE sets new benchmarks for quality and performance in the product category of integrated amplifiers. It is the crown of th...

The New Simply 845 ranks at the top of Unison Research’s line of integrated tube amplifiers, second only to the historic ABSOLUTE 845. The SIMPLY...

Referenced from Tim de Paravicini’s admiration of Jaguar’s powerplant, the EAR V12 extracts much of the same philosophy. The design utilises six ...

In the forty years we have been designing and building audio products, we have always listened to the concerns and comments of our customers world...

In the twenty-five years Unison have been designing and building audio products, they have always listened to the concerns and comments of our c...

The popular American magazine The Absolute Sound first picked the Absolute 845 as the best product of 1994. After 30 years, the Absolute is still ...