Audio Note (UK) released its first integrated amplifier, the OTO PP, in 1991 and it is a testimony both to the amplifier’s design and also to the company’s  longevity that it is still possible to buy the same model today, still built completely in their factory in Sussex, England, over 25 years later. While other manufacturers come and go, as do their products, Audio Note (UK) has stood the test of time and is now Europe’s largest and most prestigious manufacturer of ultra performance valve based home audio systems.