Innovative and refined solution

This "energizer" transforms the classic symmetrical headphone amplifiers and integrated amplifiers into a Kingsound and Stax electrostatic headphone amplifier.

Example of suggestion:Kingsound KS-H4 Headphones sold separately

This technology on Permalloy transformer is one of the best to amplify an electrostatic headphones bringing dynamic, natural sound insurmountable even in the high acute medium where traditional technologies are lacking bringing a lean and little differentiated sound even on tube amps for ESL helmets.

Cand headphone amplifier works either by plugging it into the top outputsspeakers of a standard built-in amplifier, either at the output of a balanced balanced headphone amplifierhref = "https://www.audiophonics.fr/fr/amplificateur-casque-sedentaire/ifi-audio-pro-ican-preamplificateur-amplificateur-casque-a-tubes-p-11024.html">iFi AUDIO PRO iCANfor example,Aune X7S

The principle of the Permalloy PPCT transformer

A Permalloy coupling transformer brings a lot of benefits to an electrostatic headset. It provides a real impedance and voltage matching on an electrostatic headset that produces a dynamic microphone from bass to treble without thinness with real homogeneity on the bandwidth.

Thes conventional transistor or tube amplification schemes are incapable of providing such coherence. Like all elegant technology, this electrostatic headphone amplifier works only on 3 steps in a clean design with few components but high quality respecting the starting signal in its integrity.

An amplification power supply on a capacitive load

Power is the most important aspect for amplification of electrostatic headphones. the iFi Audio Capacitance Load Capacitor provides an extremely low noise level that simulates battery charging by nature without the disadvantages of discharge cycles.

the alliance of the Permalloy output transformer opposite the capacitive charge of the capacitors allows a real barrier to noise and very high frequencies allowing optimal working of electrostatic headphones.

High level components

This capacitive battery charge is achieved through 12 Wima Germany 1000 V capacitors. The key is the very high insulation resistance (several kilo Ohm) with minimal leakage currents. The SMD type resistors on the circuit are of Vishay MELF series origin allowing a fast impulse response without noise noises on the harmonics of the signal.

Broad electrostatic and dynamic compatibility

This amplifier casque thanks to a wide range of settings that allows the operation of a large number of ESL headphones market but also classical headphones in Balanced mode symmetrical electrodynamic. Equipped with BIAS voltage regulation and impedance, the iFi audio PRO-iESL is therefore essential with the main brands of the market:

• Electrostatic: compatible with Kingsound, Stax, Sennheiser Orpheus, Koss
• Electrodynamics Balanced: Sennheiser, Focal, AKG (K1000), Audeze, Beyerdynamic

Test of IFI PRO-IESL by Paul Rigby