John Curl joins iFi and AMR as technical consultant

Now that is unexpected but surely positive and inspiring news: "iFi audio and our sister company Abbingdon Music Research (AMR) are pleased to announce that John Curl, one of the world’s most respected high-end audio engineers, has been engaged as a technical consultant.

Curl is working across all new product designs from iFi and AMR, collaborating closely with our Technical Director Thorsten Loesch to ensure that all circuit designs are fully optimised. The first products to feature his input include our forthcoming ZEN range of desktop audio products – the first of which launches at the end of August – together with all-new high-end components from AMR, due in 2020.

John’s status at the forefront of high-end audio’s hall of fame has been secure for many years. In 1968, whilst building a mixing console for the Grateful Dead, he developed a solid-state circuit that became a benchmark in high-performance audio – the “complimentary differential-input” circuit, which still appears in application handbooks published by transistor manufacturers today.

This led to Curl working with a young Mark Levinson in the early 1970s, creating the legendary Mark Levinson Audio Systems JC-2 preamplifier ­– the first standalone product to incorporate Curl’s complementary differential-input circuit – followed by the ML-2 Class A power amplifier. He went on to work with many other luminaries of the high-end audio scene, including Dave Wilson and Jeff Roland.

 Curl is unquestionably one of a small group of engineers whose influence is so great it has altered the direction of audio design. Many of us have listened to equipment he has designed, or that was inspired by his work, often without even realising it. His solid-state circuit designs are lauded as classic exemplars of the type; when asked what makes him different to other audio electronics designers, he once replied, “I have circuit sense”.

Today, Curl works with a select group of audio companies including US-based Parasound and one of high-end audio’s most lauded manufacturers in recent years – Constellation Audio. iFi audio and AMR are delighted to reap the benefits of the exceptional experience he has gained whilst devising some of the finest audio circuits of the last five decades.

Vincent Luke, our Sales Director said: “We are excited to have the opportunity to add John’s exceptional expertise to our talented team of technical designers, led by Thorsten Loesch. His insight will help us to further raise the sonic bar with products from both iFi and AMR – from portable and desktop audio to the very finest high-end hi-fi components, we will continue to push the boundaries of design, functionality and performance.”