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).

 

 

 

 

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