iFi Launch Pro Series iESL Headphone Energiser

The Pro series iESL is an energiser for electrostatic headphones (and a transformer-coupled stage for flagship dynamic headphones too).
The Pro iESL driven by either the iFi Pro iCAN or another powerful amplifier takes electrostatic headphones to an unprecedented level of performance.


Its defining characteristic is a transparency and an ultra-wide dynamic range that is totally natural. The Pro iESL works with Stax, Sennheiser, Orpheus and many more.
The Pro iESL’s three key elements combine the very best in classic approaches with the latest in cutting-edge technology:

– Atypical Pinstripe Permalloy Core Transformer

– Bias Voltage Generator

– Capacitive Battery Power Supply

Component quality delivers the ‘perfectly matched’ headphone experience.

– One-off, hand-wound, Pinstripe Permalloy Core Transformer.

– Wima Capacitors.

– Vishay MELF resistors.

– Gold-plated silver and sealed-silver alloy contact relays
The retail price of the Pro iESL is US$1,399 (ex-tax) or €1,575/£1,395 (incl VAT).

 

 

 

 

Next / Previous

Latest posts

High End Vienna 2026 Report Part Two - Hall X4 World Of Headphones And More Vienna high end show High End Vienna 2026 Report Part Two – Hall X4 World Of Headphones And More June 11, 2026 high end vienna 2026 report part 1 Vienna High End 2026 report High End Vienna 2026 Report Part One Floor – 2 June 10, 2026 Cambridge Audio Evo 300 Streaming Amplifier Cambridge Audio Evo 300 Streaming Amplifier June 4, 2026 High End Vienna 2026 Preview – Audio Group Denmark High End Vienna 2026 Preview – Audio Group Denmark June 4, 2026