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iFi Pro iESL
$2,899.00
PRODUCT IS AVAILABLE FOR SPECIAL ORDER ONLY!
Love your electrostatic headphones but need more drive?
Look no further than the iFi audio Pro iESL – this flagship energiser will have them singing in no time.
Out of stock
The Porsche and the Pro
Imagine the audio equivalent of a Porsche engine of the flagship headphone world and you have the Pro iESL.
Electrostatics need high voltages to energise them to make sound. The Pro iESL is one such energiser and delivers the extra-high-tension voltage needed. The capacitor pack has around 35,000,000 kOhm insulation resistance, which means that self-discharge time (to 30%) is around 100,000 seconds or 27 hours.
It is one of the best energisers in the business (even if we do say so ourselves) and is compatible with all the great electrostatic brands – including Orpheus and Koss.
Big sound
If you like electrostatics, then you like ‘big’ sound.
The Pro iESL won’t disappoint. Coupled with our more traditional flagship amplifier, the Pro iCAN (or any other, but we like ours), the Pro iESL lowers distortion, separates vocals, orchestras and instruments.
It opens up the bass and leaves you with a wide, structured soundstage.
Dynamic duo
And, we’ve got good news.
The Pro iESL can also be used with your flagship dynamic headphones thanks to a unique transformer-coupled-stage that can take them to the max.
| Frequency Response | 640V RMS (16Ω/20V in) 320V RMS (64Ω/20V in) |
|---|
Features
One of a kind energiser
Good news for your flagship dynamic headphones.
The iESL has an ear-tingling transformer coupled-stage that is not found in other energisers. And its audio performance is unsurpassed. So each and every flagship dynamic headphone when used through the iESL enjoys a whole new level of smoothness and airiness.
State of the art resistors
Vishay MELF resistors – complex, costly BUT superior. These resistors provide optimal power rating and pulse load capability. Nothing else comes close.
World Class Capacitors
These 1,000Volt rated capacitors are from Germany. The key is the very high insulation resistance and minimal current leakage, as any such leakage causes self-discharge.
The whole capacitor pack has around 35,000,000 kiloOhm insulation resistance, which means that self-discharge time (to 30%) is around 100,000 seconds or 27 hours. So one is always listening on battery (not mains) power.
‘The Capacitive Battery Power Supply.
The battery is charged up to the required voltage and then the charger circuit is turned off completely, leaving the capacitor bank to ‘float’ at the required bias voltage.
An essentially perfect bias voltage source with no electronic noise whatsoever at any frequency as the headphones are in essence, powered by the battery bank and not the mains!
Custom Transformer
Making a transformer with the wide bandwidth and low distortion needed in the iESL is very challenging. To attain this, the custom transformers use complicated hand-wound, multi-section windings with both vertical and horizontal sectioning.
They exceed the standards set by Siemans (Germany) and Peerless (USA). With a bandwidth of < 5Hz to > 60kHz (-3dB), transformers in the iESL far exceed the requirements of even the JAS High-Res Logo.
The ‘Perfectly Matched’ headphone experience.
Both classic and cutting edge technology in 3 quality components delivers a perfectly matched listening experience – one-off Pinstripe Permalloy Core Transformer, a Bias Voltage Generator and the Capacitive Battery Power Supply.
Electrostatic Compatibility
Drive your electrostatics with one of the best energisers in the business. Compatible with all the great electrostatic headphone brands – including Orpheus and Koss.
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